* feat(search): add multi-token regex and wildcard support
* feat(ui): add layout toggle button in Model Manager header
* feat(ui): add hidden-files toggle and i18n updates
- Added a new header button in the Model Manager to toggle display of
hidden files/folders (dot-prefixed). This updates the existing
`ModelManager.Scan.IncludeHiddenFiles` setting, persists it, and
refreshes the dialog so changes apply immediately.
- Button shows dynamic icon + tooltip:
- 👁 "Show hidden files"
- 👁🗨 "Hide hidden files"
- Updated i18n locale files:
- en.json: added strings for both the layout toggle and hidden-files toggle
- zh.json: added translations for the same strings
Note: normally these i18n keys would have been split between the layout
commit and this one, but they are grouped here for simplicity so all UI
strings for the new header buttons are introduced together.
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Co-authored-by: Hayden <48267247+hayden-fr@users.noreply.github.com>
