Mattermost-server: Write an automated test using Cypress for "Recent mentions search doesn't fully expand in tablet view until results are fully loaded"

[saturninoabril]

Test Key: M18696
Test folder: /cypress/integration/messaging
Title: Recent mentions search doesn't fully expand in tablet view until results are fully loaded

Steps:

1. Sign in to Mattermost on Chrome and shrink the window to about halfway horizontally so that it displays in tablet view
2. Click the "@"-icon to open recent mentions search

Expected:
Search expands fully just like for others like flagged posts

See our end-to-end testing documentation for reference.

Jira ticket: MM-18696

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[a-arias]

I'm going to take this one @saturninoabril

[jespino]

Great @a-arias

[saturninoabril]

@a-arias Thanks for looking into this, just checking progress.

[jasonblais]

I'll open this back up for grabs due to inactivity. @a-arias If you're still interested working on this, let us know! :)

[rodel-calasagsag]

@saturninoabril @jasonblais I would like to take this one if no one's working on this yet

[saturninoabril]

Sure, thanks!

[saturninoabril]

Outdated. Closing. Will publish new HW.