* minor bugfix: close panel on escape
* add arrow navigation to kanban board
* show shortcut "C" on the button to create a new task
* move keyboard handler to keyboard-shortcuts.ts
* create a new task attempt and stop it using keyboard navigation
* remove key hints from buttons
* implement arrow navigation for project cards
* add confirmation dialog before stopping executions
* confirm before starting a task if it is in todo column
* fmt
* show start task confirmation only on key press
* create project on C press
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