MM-58502 Error on crossing block limit on client side

[Rajat-Dabade]

Fixes: https://mattermost.atlassian.net/browse/MM-58502

This PR implements a client-side check for the block limit on the card. Instead of failing silently without any error message, the front end will display an error if the block limit is exceeded.

User flow:

• An error will be shown if the user crosses the block limit on the client side.
• Error will persist if the user loses the focus from the block and no API call will be made.
• If users close the card with an error then the data will be lost.

Screen.Recording.2024-06-12.at.8.41.12.PM.mov

I also updated the mysql/mysql-server docker version because version 5.7.12 was deprecated.

[yasserfaraazkhan]

verified uploading plugin to 9.10.0 server. The expected error is display.