[NEW] Project 02 - Changing and adding servers VoiceOver accessible

[rudrankriyam]

@RocketChat/ios

• [x] Adding a new server follows the same steps as from the main authentication screen, with the option of sign up and login. It has been covered in the previous project.

• [x] Servers can be added and changed using the ServersListView.

• [x] However, instead of tapping the current server, double tapping on Messages opens and closes the ServersListView instead, which needs to be changed.

• [x] Adding a comma between the accessibility label of Rocket.Chat and serverURL sounds a bit better by creating pause in VoiceOver dictation.

• [x] Accessibility notifications for screen and layout changes

[codecov[bot]]

Codecov Report

Merging #2750 into develop will decrease coverage by 1.56%. The diff coverage is 0%.

@@             Coverage Diff             @@
##           develop    #2750      +/-   ##
===========================================
- Coverage     46.1%   44.54%   -1.57%     
===========================================
  Files          626      626              
  Lines        28938    28943       +5     
===========================================
- Hits         13343    12892     -451     
- Misses       15595    16051     +456

Impacted Files	Coverage Δ
...ket.Chat/Views/Subscriptions/ServersListView.swift	0% <0%> (ø)	:arrow_up:
...t/Views/Subscriptions/SubscriptionsTitleView.swift	42.5% <0%> (-2.24%)	:arrow_down:
...ubscriptionsList/SubscriptionsViewController.swift	1.4% <0%> (-0.02%)	:arrow_down:
Rocket.Chat/Views/Base/BaseNavigationBar.swift	0% <0%> (-100%)	:arrow_down:
Rocket.Chat/Views/Chat/ChatAnnouncementView.swift	0% <0%> (-83.34%)	:arrow_down:
...ontrollers/Chat/MessagesViewControllerTyping.swift	0% <0%> (-77.78%)	:arrow_down:
...ntrollers/Chat/MessagesViewControllerJoining.swift	0% <0%> (-71.74%)	:arrow_down:
...Chat/Models/Mapping/LoginServiceModelMapping.swift	0% <0%> (-66.3%)	:arrow_down:
...odel/AuthSettingsManagerPersistencyExtension.swift	0% <0%> (-62%)	:arrow_down:
...trollers/Chat/MessagesViewControllerDrafting.swift	20% <0%> (-60%)	:arrow_down:
... and 20 more

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