[GH-313] Redirect user when a new meeting is started

[raghavaggarwal2308]

Summary

• When a new meeting is started using the Zoom icon in the app bar/channel header the user is not getting redirected to the meeting tab because the meeting URL is undefined.
• We updated the logic to convert the response of the start meeting API to JSON for fetching the meeting URL.

What to test?

• When a user starts a new meeting using the Zoom icon in the app bar/channel header, he/she should be redirected to the meeting page.

Steps to reproduce:

• Click on the Zoom icon in the app bar/channel header. (Note: These should not be an existing meeting of the user in that channel)

Environment:

MM version: v7.8.10
Node version: 14.18.0
Go version: 1.19.0

Ticket Link

Fixes #313

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (dbbb587) 19.33% compared to head (9323ab4) 19.33%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #314   +/-   ##
=======================================
  Coverage   19.33%   19.33%           
=======================================
  Files           9        9           
  Lines        1479     1479           
=======================================
  Hits          286      286           
  Misses       1138     1138           
  Partials       55       55           

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[AayushChaudhary0001]

Tested and approved
Working fine, LGTM