Press F → hide TopStrip + BottomTicker, drop the panel column borders, and
shrink panel columns from 320 to 280 so the globe gets more room. Esc →
exit. Mode persists to localStorage at STORAGE_KEYS.PRESENTATION_MODE so
refresh maintains it (use case: second-monitor wall).
Implementation: each chrome component (TopStrip, BottomTicker) reads
presentationMode from the ui store and early-returns null. Dashboard
applies a .presentation modifier to .root that re-templates the inner
.grid columns and zeroes the aside borders. CSS Modules-scoped — no
:global escape, no clsx dep.
isTypingInForm guards F so it doesn't fire when typing in inputs / textareas
/ contentEditable. Escape always exits — universal "get me out" semantics.
useUIStore.getState() inside the keydown handler avoids stale closure.
Plan 5 Task 11 Design QA: F hides chrome cleanly without animation flash,
globe area expands, panels stay readable, Esc restores, state persists.
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