[MBL-1027] Blocked User Messages UI

[scottkicks]

📲 What

If a user has blocked someone that they have a message thread with we need to disable the Reply button and inform users that they have blocked said user

🤔 Why

If a user has blocked someone they will no longer receive new messages or be able to message them.

🛠 How

Uses the same design that we had for the creator dashboard deprecation warning banner to inform users.
The isBlocked value is being hardcoded for now but this will be updated so that we get the isBlocked status from the backend instead in MBL-1024.

👀 See

| After 🦋 |
| |

✅ Acceptance criteria

• banner should show when the participant isBlocked
• banner should not cover any of the existing message thread

⏰ TODO

• get isBlocked status from the backend. MBL-1024

[scottkicks]

adding the banner to the tabController rather than the ViewController directly. This helped to avoid some more specific styling that we would need to do in order to have this banner sit above the tab bar and not block the ViewController's content.

With this approach, we can simply call updateTableViewBottomContentInset on viewDidAppear.

[codecov]

Codecov Report

Attention: 24 lines in your changes are missing coverage. Please review.

Comparison is base (1156229) 83.74% compared to head (4fc4112) 83.73%.

Files	Patch %	Lines
...s/Messages/Controller/MessagesViewController.swift	0.00%	16 Missing ⚠️
...anner/Controller/MessageBannerViewController.swift	45.45%	3 Missing and 3 partials ⚠️
Library/ViewModels/MessagesViewModel.swift	80.00%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1887      +/-   ##
==========================================
- Coverage   83.74%   83.73%   -0.01%     
==========================================
  Files        1222     1222              
  Lines      111440   111501      +61     
  Branches    29644    29665      +21     
==========================================
+ Hits        93322    93363      +41     
- Misses      17101    17118      +17     
- Partials     1017     1020       +3     

☔ View full report in Codecov by Sentry.
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[amy-at-kickstarter]

There are a couple things in here I have questions about before merging. My specific comments are inline in the code, but here are the three things I'd like to see addressed:

1. New banner view, vs. re-using old banner view
2. Suggestions for improving the code to display a banner from the tab bar controller
3. Clarifying participantIsBlocked vs. userHasBeenBlocked signals

[scottkicks]

@amy-at-kickstarter using the existing uikit banner. had to do some rework to control the dismissal of the banner, but i think I've addressed everything now.

[ifosli]

I didn't run and test this, but looks good apart from the spelling error! (And you can already use the isBlocked field on the creator if you'd like to.)

[amy-at-kickstarter]

LGTM. I also like @ifosli's suggestions!