Bump tinymce from 4.9.4 to 5.6.0

[dependabot]

Bumps tinymce from 4.9.4 to 5.6.0.

Changelog

Sourced from tinymce's changelog.

Version 5.6.2 (2020-12-08) Fixed a UI rendering regression when the document body is using display: flex #TINY-6783 Version 5.6.1 (2020-11-25) Fixed the mceTableRowType and mceTableCellType commands were not firing the newCell event #TINY-6692 Fixed the HTML5 s element was not recognized when editing or clearing text formatting #TINY-6681 Fixed an issue where copying and pasting table columns resulted in invalid HTML when using colgroups #TINY-6684 Fixed an issue where the toolbar would render with the wrong width for inline editors in some situations #TINY-6683 Version 5.6.0 (2020-11-18) Added new BeforeOpenNotification and OpenNotification events which allow internal notifications to be captured and modified before display #TINY-6528 Added support for block and unblock methods on inline dialogs #TINY-6487 Added new TableModified event which is fired whenever changes are made to a table #TINY-6629 Added new images_file_types setting to determine which image file formats will be automatically processed into img tags on paste when using the paste plugin #TINY-6306 Added support for images_file_types setting in the image file uploader to determine which image file extensions are valid for upload #TINY-6224 Added new format_empty_lines setting to control if empty lines are formatted in a ranged selection #TINY-6483 Added template support to the autocompleter for customizing the autocompleter items #TINY-6505 Added new user interface enable, disable, and isDisabled methods #TINY-6397 Added new closest formatter API to get the closest matching selection format from a set of formats #TINY-6479 Added new emojiimages emoticons database that uses the twemoji CDN by default #TINY-6021 Added new emoticons_database setting to configure which emoji database to use #TINY-6021 Added new name field to the style_formats setting object to enable specifying a name for the format #TINY-4239 Changed readonly mode to allow hyperlinks to be clickable #TINY-6248 Fixed the change event not firing after a successful image upload #TINY-6586 Fixed the type signature for the entity_encoding setting not accepting delimited lists #TINY-6648 Fixed layout issues when empty tr elements were incorrectly removed from tables #TINY-4679 Fixed image file extensions lost when uploading an image with an alternative extension, such as .jfif #TINY-6622 Fixed a security issue where URLs in attributes weren't correctly sanitized #TINY-6518 Fixed DOMUtils.getParents incorrectly including the shadow root in the array of elements returned #TINY-6540 Fixed an issue where the root document could be scrolled while an editor dialog was open inside a shadow root #TINY-6363 Fixed getContent with text format returning a new line when the editor is empty #TINY-6281 Fixed table column and row resizers not respecting the data-mce-resize attribute #TINY-6600 Fixed inserting a table via the mceInsertTable command incorrectly creating 2 undo levels #TINY-6656 Fixed nested tables with colgroup elements incorrectly always resizing the inner table #TINY-6623 Fixed the visualchars plugin causing the editor to steal focus when initialized #TINY-6282 Fixed fullpage plugin altering text content in editor.getContent() #TINY-6541 Fixed fullscreen plugin not working correctly with multiple editors and shadow DOM #TINY-6280 Fixed font size keywords such as medium not displaying correctly in font size menus #TINY-6291 Fixed an issue where some attributes in table cells were not copied over to new rows or columns #TINY-6485 Fixed incorrectly removing formatting on adjacent spaces when removing formatting on a ranged selection #TINY-6268 Fixed the Cut menu item not working in the latest version of Mozilla Firefox #TINY-6615 Fixed some incorrect types in the new TypeScript declaration file #TINY-6413 Fixed a regression where a fake offscreen selection element was incorrectly created for the editor root node #TINY-6555 Fixed an issue where menus would incorrectly collapse in small containers #TINY-3321 Fixed an issue where only one table column at a time could be converted to a header #TINY-6326 Fixed some minor memory leaks that prevented garbage collection for editor instances #TINY-6570 Fixed resizing a responsive table not working when using the column resize handles #TINY-6601 Fixed incorrectly calculating table col widths when resizing responsive tables #TINY-6646 Fixed an issue where spaces were not preserved in pre-blocks when getting text content #TINY-6448 Fixed a regression that caused the selection to be difficult to see in tables with backgrounds #TINY-6495 Fixed content pasted multiple times in the editor when using Microsoft Internet Explorer 11. Patch contributed by mattford #GH-4905 Version 5.5.1 (2020-10-01)

... (truncated)

Commits

• 933ded7 Added version 5.6.0 release.
• a436d25 Added version 5.5.1 release.
• a2c91ba Added version 5.5.0 release.
• 71197b6 Added version 5.4.2 release.
• 940fdcf Added version 5.4.1 release.
• aa17e50 Added version 5.4.0 release.
• d61fb3a Added version 5.3.2 release.
• 680aa99 Added version 5.3.1 release.
• 5831401 Added version 5.3.0 release.
• a9e4928 Added version 5.2.2 release.
• Additional commits viewable in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot merge will merge this PR after your CI passes on it
• @dependabot squash and merge will squash and merge this PR after your CI passes on it
• @dependabot cancel merge will cancel a previously requested merge and block automerging
• @dependabot reopen will reopen this PR if it is closed
• @dependabot close will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
• @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)
• @dependabot use these labels will set the current labels as the default for future PRs for this repo and language
• @dependabot use these reviewers will set the current reviewers as the default for future PRs for this repo and language
• @dependabot use these assignees will set the current assignees as the default for future PRs for this repo and language
• @dependabot use this milestone will set the current milestone as the default for future PRs for this repo and language

You can disable automated security fix PRs for this repo from the Security Alerts page.