Fix recently used emojis

[stefanceriu]

3 bug fixes:

• the recently used emojis stop working properly on 18.2 because of our usage of the private iOS preferences user defaults
• the media gallery was sometimes showing the empty state at wrong times
• video thumbnails were aspect fitting instead of filling and they weren't the right design

[github-actions]

	Warnings
⚠️	You seem to have made changes to views. Please consider adding screenshots.

Generated by 🚫 Danger Swift against b2aa8a4

[codecov]

❌ 2 Tests Failed:

Tests completed	Failed	Passed	Skipped
903	2	901	0

View the full list of 2 ❄️ flaky tests

PreviewTests test_timelineMediaPreviewDetailsView()

Flake rate in main: 25.00% (Passed 60 times, Failed 20 times)

Stack Traces | 1.71s run time

failed - Snapshot "Image" does not match reference.

@−
"file:.../__Snapshots__/PreviewTests/test_timelineMediaPreviewDetailsView-iPhone-16-en-GB.Image.png"
@+
"file:.../tmp/PreviewTests/test_timelineMediaPreviewDetailsView-iPhone-16-en-GB.Image.png"

To configure output for a custom diff tool, use 'withSnapshotTesting'. For example:

    withSnapshotTesting(diffTool: .ksdiff) {
      // ...
    }

The percentage of pixels that match 0.9968624 is less than required 1.0
The lowest perceptual color precision 0.29250002 is less than required 0.98 (PreviewTests/Sources/PreviewTests.swift:84)

PreviewTests test_roomMemberDetailsScreen()

Flake rate in main: 12.82% (Passed 68 times, Failed 10 times)

Stack Traces | 2.06s run time

failed - Snapshot "Verified User" does not match reference.

@−
"file:.../__Snapshots__/PreviewTests/test_roomMemberDetailsScreen-iPhone-16-en-GB.Verified-User.png"
@+
"file:.../tmp/PreviewTests/test_roomMemberDetailsScreen-iPhone-16-en-GB.Verified-User.png"

To configure output for a custom diff tool, use 'withSnapshotTesting'. For example:

    withSnapshotTesting(diffTool: .ksdiff) {
      // ...
    }

The percentage of pixels that match 0.848999 is less than required 1.0
The lowest perceptual color precision 0.0 is less than required 0.98 (PreviewTests/Sources/PreviewTests.swift:84)

To view more test analytics, go to the Test Analytics Dashboard
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[pixlwave]

LGTM 👍

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud