[MM-231] Sync the plugin with starter template

[ayusht2810]

Summary

Synced the plugin to include the below PRs:

• https://github.com/mattermost/mattermost-plugin-starter-template/pull/192
• https://github.com/mattermost/mattermost-plugin-starter-template/pull/193

Ticket Link

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (b1bcb7b) 23.71% compared to head (9a1beba) 23.71%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #356 +/- ## ======================================= Coverage 23.71% 23.71% ======================================= Files 62 62 Lines 3087 3087 ======================================= Hits 732 732 Misses 2274 2274 Partials 81 81 ```

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[mickmister]

@ayusht2810 Can you please resolve the conflicts here? Thank you

[mickmister]

@raghavaggarwal2308 Can you please take a look at this PR?

[mickmister]

Not sure if the lint one is running correctly though. Looks like it just downloads the dependencies

https://github.com/mattermost/mattermost-plugin-welcomebot/actions/runs/8344951987/job/22838648109?pr=123

[ayusht2810]

@mickmister Should we move the PR to QA review?