v1.7.0 - UX improvements

Dark Mode

Automatic dark mode that follows your system preference — no configuration needed.
Override it manually with the theme toggle in the header: dark → light → auto.
Preference persists across sessions. Brand colors stay intact regardless of mode.

Keyboard Shortcuts

Five shortcuts for power users:

• / — focus search
• Escape — close previews, dropdowns, menus, or blur active input in priority order
• Ctrl/Cmd + Enter — send message
• Ctrl/Cmd + K — jump to message input
• Tab — cycle through channels

Undo Toast for Deletion

Deleting an item no longer shows a confirm dialog — the item disappears instantly
and a 5-second toast appears with an Undo button. Click Undo to restore it, or let
the timer run to confirm. Pinned items still require confirmation since pinning
signals intent to keep.

Multiple File Upload

Select or drop multiple files at once. They upload sequentially with a per-file
progress indicator showing "2 of 4 · filename". If one file fails or exceeds the
size limit it's skipped with a warning and the rest continue. Files always land
in the channel active at the time the upload was started.