Close [BS-2866](https://linear.app/affine-design/issue/BS-2866/presentation-mode中的note消失)
## Problem
When using RequestAnimationFrame (RAF) for GFX block updates, there was a timing issue where the transform update would lag behind the RAF callback, causing the block to display with the previous frame's transform state.
## Solution
1. Refactored the block state management to use signals for better reactivity
2. Moved block visibility state management from `viewport-element.ts` to `gfx-block-component.ts`
3. Added `transformState$` signal to track block state
4. Synchronized transform updates with RAF using `effect` to ensure updates happen in the correct frame
5. Added test case to verify note visibility in presentation mode
