fix: audio waveform clipping in horizontal card view (#14789)

Fixes #13399

### Issue
When viewing an audio attachment card in horizontal view, the waveform 
was being clipped and not fully visible. In vertical view it displayed 
correctly.

### Fix
- `audio-waveform` and `progressContainer` flex children were missing 
  `minWidth: 0` and `flex: 1`, causing container overflow
- `.affine-attachment-container` had a fixed height with `overflow:
hidden`
  that cut off the waveform row

### Screenshot Verification
**Before**
<img width="1661" height="935" alt="image"
src="https://github.com/user-attachments/assets/b2f0908b-94fe-4869-bdfb-cc6a757e703d"
/>

**After**
<img width="750" height="182" alt="image"
src="https://github.com/user-attachments/assets/63caac69-f37b-4894-80de-806b691581c8"
/>


<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

**New Features**
- Introduced audio embed card functionality allowing users to embed and
display audio content directly in documents with standardized dimensions
and improved responsive layout styling for better visual presentation
and integration.

**Improvements**
- Enhanced styling and layout handling for audio player components to
ensure proper display and optimal rendering in various container sizes
and space constraints.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

packages/frontend/core/src/blocksuite/attachment-viewer/audio/audio-block.css.ts

@@ -54,4 +54,5 @@ export const reloadButtonIcon = style({
 globalStyle(`.affine-attachment-container:has(${root})`, {
   border: 'none',
   overflow: 'visible',
+  height: 'fit-content !important',
 });