The legacy 'workspaces' built-in renders cleaner than the animated
workspacesPro file widget. Removed the widget file, its first-party
registration in Bar.qml, and updated the default layouts and docs.
'workspaces' loses the (legacy) tag in the catalog since there's no
alternative anymore.
omarchy.bar-settings and omarchy.image-picker are shell infrastructure —
the customizer and image picker themselves. Listing them in 'Other
plugins' with move/remove arrows is misleading: removing the panel
plugin doesn't disable anything (it's summoned on demand via IPC), and
adding them never made sense.
Dropped them from shell-defaults.json's plugins[] and from the inline
builtinShellConfig fallback. normalizeDraft and availableToAdd now skip
manifests with __isFirstParty so existing user shell.json files
self-heal on next load.
Ryan Hughes