feat(sbb-form-field): adapt new design and add negative mode

[jeripeierSBB]

Closes #1944

Next to the new negative modes, we introduce a focus styling for borderless variant and moreover when using keyboard navigation, there is a separate focus outline around the sbb-form-field now.

The following components receive a negative mode:

• Form Field
• Autocomplete
• Button (in formfield)
• Datepicker Next Day Button
• Datepicker Previous Day Button
• Datepicker Toggle
• Form Error
• Form Field Clear
• optgroup
• option
• select
• time input (nur examples)
• tooltip trigger
• visual checkbox

[codecov-commenter]

Codecov Report

Merging #1976 (6008238) into master (ab917b0) will decrease coverage by 17.42%.
Report is 1681 commits behind head on master.
The diff coverage is 30.21%.

❗ Current head 6008238 differs from pull request most recent head 1bd304b. Consider uploading reports for the commit 1bd304b to get more accurate results

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@@             Coverage Diff             @@
##           master    #1976       +/-   ##
===========================================
- Coverage   54.85%   37.44%   -17.42%     
===========================================
  Files          49      280      +231     
  Lines        1659    10339     +8680     
  Branches      406     2264     +1858     
===========================================
+ Hits          910     3871     +2961     
- Misses        671     6226     +5555     
- Partials       78      242      +164     

Files Changed	Coverage Δ
...components/sbb-accordion/sbb-accordion.stories.tsx	0.00% <0.00%> (ø)
...ents/sbb-action-group/sbb-action-group.stories.tsx	0.00% <0.00%> (ø)
...onents/sbb-alert-group/sbb-alert-group.stories.tsx	0.00% <0.00%> (ø)
src/components/sbb-alert/sbb-alert.stories.tsx	0.00% <0.00%> (ø)
...onents/sbb-autocomplete/sbb-autocomplete.events.ts	100.00% <ø> (ø)
...ents/sbb-autocomplete/sbb-autocomplete.stories.tsx	0.00% <0.00%> (ø)
...-breadcrumb-group/sbb-breadcrumb-group.stories.tsx	0.00% <0.00%> (ø)
...mponents/sbb-breadcrumb/sbb-breadcrumb.stories.tsx	0.00% <0.00%> (ø)
src/components/sbb-button/sbb-button.stories.tsx	0.00% <0.00%> (ø)
src/components/sbb-calendar/sbb-calendar.events.ts	0.00% <0.00%> (ø)
... and 56 more

... and 230 files with indirect coverage changes

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[federicoisepponfincons]

Everything looks good
Negative version of tooltip will be available in Figma soon