Optimizes animation speed and event flow

Reduces the duration of a UI height animation for a snappier feel.
Disables a specific `header:ready` event emission during navigation rendering.

src/managers/AllDayManager.ts

@@ -242,7 +242,7 @@ export class AllDayManager {
           { height: `${currentSpacerHeight}px` },
           { height: `${targetSpacerHeight}px` }
         ], {
-          duration: 300,
+          duration: 150,
           easing: 'ease-out',
           fill: 'forwards'
         })