Use a UITableView component for the timeline.

[pixlwave]

This PR replaces the SwiftUI timeline with one based upon UITableView. The cells are configured with a UIHostingConfiguration so are still SwiftUI based. This gives us the ability to update the scroll position after changing items but before the changes are rendered meaning the scroll jumps should be fixed.

• The back pagination threshold is now double the height of the table view
• The table will keep back paginating to fill the threshold.
• Items are only added/updated when the table isn't scrolling as updating the scroll position kills any inertia. (Further pagination is blocked until items are added from a pending pagination).
• Conforms timeline items to Hashable for use in the diffable data source.
• TimelineView has been merged into RoomScreen (happy to revert this if it doesn't make sense).

Todo

• The syncing indicator still needs a ProgressView to match the figma (future PR).
• Add UI tests so we notice if any desired behaviours are broken (future PR).

Back.pagination.mp4

Small Timeline

[github-actions]

	Warnings
⚠️	This pull request seems relatively large. Please consider splitting it into multiple smaller ones.
⚠️	Some of the commits are missing ticket numbers. Please consinder using them for better tracking.

Generated by 🚫 Danger Swift against 2469f89

[codecov]

Codecov Report

Base: 34.41% // Head: 33.36% // Decreases project coverage by -1.04% ⚠️

Coverage data is based on head (e5062dc) compared to base (9415bd3).
Patch coverage: 7.65% of modified lines in pull request are covered.

❗ Current head e5062dc differs from pull request most recent head 2469f89. Consider uploading reports for the commit 2469f89 to get more accurate results

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #349      +/-   ##
===========================================
- Coverage    34.41%   33.36%   -1.05%     
===========================================
  Files          232      233       +1     
  Lines        15059    15537     +478     
  Branches      9188     9424     +236     
===========================================
+ Hits          5182     5184       +2     
- Misses        9728    10198     +470     
- Partials       149      155       +6     

Flag	Coverage Δ
unittests	13.69% <0.00%> (-0.08%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...mentX/Sources/Generated/Strings+Untranslated.swift	54.54% <ø> (-12.13%)	⬇️
.../Sources/Screens/RoomScreen/RoomScreenModels.swift	50.00% <0.00%> (-50.00%)	⬇️
...es/Screens/RoomScreen/View/TimelineTableView.swift	0.00% <0.00%> (ø)
...entX/Sources/Services/Media/MediaSourceProxy.swift	0.00% <0.00%> (ø)
...line/TimeLineItemContent/MessageTimelineItem.swift	0.00% <ø> (ø)
...TimelineItems/EventBasedTimelineItemProtocol.swift	93.54% <ø> (ø)
...ne/TimelineItems/Items/EmoteRoomTimelineItem.swift	0.00% <ø> (ø)
...imelineItems/Items/EncryptedRoomTimelineItem.swift	0.00% <ø> (ø)
...ine/TimelineItems/Items/FileRoomTimelineItem.swift	0.00% <ø> (ø)
...ne/TimelineItems/Items/ImageRoomTimelineItem.swift	0.00% <ø> (ø)
... and 22 more

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[stefanceriu]

This looks so promising, hope we can squash all the little edge cases and get something really solid out of it 👏

[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
1 Code Smell

No Coverage information
0.0% Duplication

[stefanceriu]

lgtm 👍 👏