[MM-8]: Added topic for starting meeting

[Kshitij-Katiyar]

Summary

Updated slash command to start a meeting to support adding topic to a meeting

Existing command: /mstmeetings start

Updated command: /mstmeetings start DEMO_MEETING_TOPIC

Screenshot

Ticket Link

Fixes #8

[AayushChaudhary0001]

While testing this PR I have found 2 issues.

1. Multiple arguments allowed with spacing
2. No limit on length of the meeting topic

I am attaching screenshots supporting above statements, please take a look and see if we can fix them. Option 1 would be an enhancement(as MM considers each word as an argument), but option 2 should be fixed as it would be considered as a bug.

For point 1:-

For point 2:-

[Kshitij-Katiyar]

@AayushChaudhary0001 I looked into your comment, and here is what I found:

• We want to support spaces in the meeting topic, so we are allowing multiple arguments. Another approach could be to take a single argument after the command, which can be the meeting topic enclosed in double quotes. But I think what we have is better.
• I tested the length limit of the topic on the MS Teams meeting side and found that there is no restriction on the meeting topic length from their side, so we are also not imposing any limitation on the topic's length.

[AayushChaudhary0001]

Sure, this works well and rest all the features are working fine, approved.