Add threshold for unread messages in all the spaces (PSG-944)

[alfogrillo]

Description

This PR puts a threshold on the count of unread messages visibile in the home screen.
Currently the threshold is 999 messages/invites.

[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
No Duplication information

[codecov]

Codecov Report

Base: 11.74% // Head: 11.75% // Increases project coverage by +0.00% 🎉

Coverage data is based on head (83f7c70) compared to base (1efa7c1).
Patch coverage: 21.42% of modified lines in pull request are covered.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #7140   +/-   ##
========================================
  Coverage    11.74%   11.75%           
========================================
  Files         1621     1621           
  Lines       159428   159428           
  Branches     64922    64923    +1     
========================================
+ Hits         18732    18734    +2     
+ Misses      140058   140055    -3     
- Partials       638      639    +1     

Flag	Coverage Δ
uitests	54.67% <ø> (+<0.01%)	⬆️

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

Impacted Files	Coverage Δ
...Modules/Home/AllChats/AllChatsViewController.swift	29.11% <21.42%> (ø)
...Sessions/Common/View/UserSessionCardViewData.swift	87.17% <0.00%> (-1.29%)	⬇️
RiotSwiftUI/Modules/Common/Mock/ScreenList.swift	90.19% <0.00%> (+5.88%)	⬆️

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[pixlwave]

LGTM 🙌
Sorry for the delay, I must have missed this when it was assigned.

[amshakal]

LGTM as well :)