[FIX][REGRESSION] Not sending typing event

[cardoso]

@RocketChat/ios

Closes #2440

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (develop@932f7ea). Click here to learn what that means.
The diff coverage is 36.58%.

@@            Coverage Diff            @@
##             develop   #2442   +/-   ##
=========================================
  Coverage           ?     26%           
=========================================
  Files              ?     450           
  Lines              ?   16864           
  Branches           ?       0           
=========================================
  Hits               ?    4386           
  Misses             ?   12478           
  Partials           ?       0

Impacted Files	Coverage Δ
Rocket.Chat/Helpers/Throttle.swift	0% <0%> (ø)
...ntrollers/Chat/MessagesSubscriptionViewModel.swift	12.12% <0%> (ø)
...Chat/Controllers/Chat/MessagesViewController.swift	35.02% <100%> (ø)
...ontrollers/Chat/MessagesViewControllerTyping.swift	77.77% <77.77%> (ø)

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[cardoso]

@rafaelks I think this one is ready... But there's a delay in the server, we send the event and only a few seconds later the typing... appears. And in unstable.rocket.chat I can't get it to work at all... I think this is a server-side issue.

Can you test on Android and see if this is server-side? Test on open if there's a delay, and if unstable is broken.

[rafaelks]

@cardoso From my tests, you're only calling the WebSocket call when user stops typing for a few seconds, can you check it again?

[cardoso]

@rafaelks nice catch. I should be using throttling instead of debouncing. Fixed that. Thanks.