Move EventTileBubble to shared components (#31911)

* Move EventTileBubble to shared components as is

* Added documentation and updated stories and unit tests

* Move 'global' element web css to _common.pcss

* Adding playwright snapshots

* Updated comments

* Added legacy mx_MessageTimestamp class and updated snapshots

* Regenerate snapshots with correct hash

* Changes to css and removed timestamp from properties after review.

* Update screenshot for room-list and fix flaky CI playwright test.

* Blur the play button before matching screenshots

* Changed to button focused instead of blur for consistancy

* Stabilize play button appearance in CI (disabled due to decoding)

* Force play button appearance in CI (disabled due to decoding)

* Add comments on playwright test changes.
Change from React.RefObject<any> to Ref<HTMLDivElement> in EncryptionEvent.tsx

* Update playwright/e2e/composer/CIDER.spec.ts

Co-authored-by: Michael Telatynski <7t3chguy@gmail.com>

* Update playwright/e2e/composer/CIDER.spec.ts

Co-authored-by: Michael Telatynski <7t3chguy@gmail.com>

* Update playwright/e2e/crypto/toasts.spec.ts

Co-authored-by: Michael Telatynski <7t3chguy@gmail.com>

---------

Co-authored-by: Michael Telatynski <7t3chguy@gmail.com>

res/css/_common.pcss

@@ -22,6 +22,7 @@ Please see LICENSE files in the repository root for full details.
     --buttons-dialog-gap-row: $spacing-8;
     --buttons-dialog-gap-column: $spacing-8;
     --MBody-border-radius: 8px;
+    --EventTileBubble_margin-block: 10px;
 
     /* Expected z-indexes for dialogs:
         4000 - Default wrapper index