Dockable font list window with extended search filter.

[t-paul]

Font list as "normal" dockable window.

This also extends the search functionality to filter by available glyphs, e.g. filter fonts that contain the \u1f600 smiley.

ToDo:

• Allow to search for All/Any glyph
• Activate Name / Filename filter
• Drag and Drop from the font table
• Font Preview (in table, or maybe as separate panel for the selected front -> needs investigation what's possible)
• Default-hidden column showing the font name styled (+ tooltip for unreadable fonts)
• Context menu on the font row for copying path + opening explorer
• Context menu on table header for configuring the table
• Fix icons, theme icons are not portable
• Define good default sample text
• Test on Linux
• Test on Windows
• Test on MacOS

Screencast.from.2024-04-27.04-21-28.webm