Delight Composer Attempt Numero Dos

[t3chguy]

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Here's what your changelog entry will look like:

✨ Features

• Delight Composer Attempt Numero Dos (#8841).

[t3chguy]

Things which need fixing before this can land:

• Loading icon on the new message composer next to the waveform not aligned to the center element-hq/element-web#22536
• emoji cut off on the new message composer element-hq/element-web#22508
• Upload progress bar and the new message composer not aligned element-hq/element-web#22534
• Empty send button on the new message composer element-hq/element-web#22506
• New composer has a weirdly sized clickable area element-hq/element-web#22467
• Composer looks awkward in the right panel element-hq/element-web#22459
• The placeholder on the new composer lacks ellipsis effect element-hq/element-web#22511
• Placeholders on the new message composer have different styling element-hq/element-web#22522
• Message bubble highlight and the new message composer not aligned element-hq/element-web#22533
• slash autocomplete menu hides the new message composer element-hq/element-web#22537
• Shield in composer in encrypted rooms where you don't have permission to post is in the wrong place element-hq/element-web#22484

[luixxiul]

These too:

• Long displayName can overflow from the reply preview on the new message composer  element-hq/element-web#22495
• Stickers picker's context menu covering message composer element-hq/element-web#22535

[t3chguy]

Closing as the diff broke, can be used as a source of hashes when needed