[CHORE] UI adjustments on the list of chats

[rafaelks]

@RocketChat/ios

[codecov]

Codecov Report

Merging #2618 into develop will decrease coverage by 0.15%.
The diff coverage is 0%.

@@             Coverage Diff             @@
##           develop    #2618      +/-   ##
===========================================
- Coverage    26.15%   25.99%   -0.16%     
===========================================
  Files          463      463              
  Lines        17216    17216              
===========================================
- Hits          4503     4476      -27     
- Misses       12713    12740      +27

Impacted Files	Coverage Δ
...iews/Cells/Subscription/BaseSubscriptionCell.swift	0% <0%> (ø)	⬆️
...at/Views/Cells/Subscription/SubscriptionCell.swift	0% <0%> (ø)	⬆️
...anagers/Model/AuthManager/AuthManagerRecover.swift	36.36% <0%> (-60.61%)	⬇️
Rocket.Chat/Extensions/Models/AuthExtensions.swift	66.66% <0%> (-33.34%)	⬇️
...Chat/Models/Subscription/SubscriptionQueries.swift	70% <0%> (-30%)	⬇️
Rocket.Chat/Managers/PushManager.swift	24.13% <0%> (-10.35%)	⬇️
Rocket.Chat/Managers/AppManager.swift	36.04% <0%> (-4.07%)	⬇️
...Chat/Controllers/Chat/MessagesViewController.swift	34.25% <0%> (+2.75%)	⬆️
...ontrollers/Base/Main/MainSplitViewController.swift	52.5% <0%> (+7.5%)	⬆️
...ocket.Chat/Extensions/Models/ObjectExtension.swift	100% <0%> (+20%)	⬆️

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