Update Examples to Include 0.7.0+ Conveniences

[psionic-k]

Many behaviors are likely a bit simpler in 0.7.0.

See changelog:

https://github.com/magit/transient/blob/main/CHANGELOG#v070----2024-06-18

PR's welcome :-)

[psionic-k]

• transient-scope usage in existing scope example.

• refresh-suffixes is in use.

• transient-prefix-value hmmmmmmmmmm

• transient-init-scope slot on prefixes. (Not a priority. Prefixes can set their scope within their own body before calling setup)

• The new prefix slots display-action and mode-line-format

• transient-suffix-object to read the suffix (and likely modify)

• transient-active-prefix for use with timers

• transient-with-help-window 🆘 Idk yet.

[psionic-k]

https://github.com/magit/transient/blob/main/CHANGELOG#v080----2024-12-06

Now that 0.8 is out, there are more potential updates.

The transient-prefix-value generic function is of particular interest. If a prefix overrides this, its suffixes may use an alternate reality version of transient-args. It appears this can be used to create prefix classes that are less bound to the CLI style design decisions and perhaps more similar to "normal" interactive commands.
https://github.com/magit/transient/blob/main/lisp/transient.el#L3645-L3650