Moves checkbox for hiding self view to video tab from the general tab

[smarizvi110]

resolves #14407

Moves checkbox for hiding self view to video tab from the general tab, under mirror my video checkbox

[jitsi-jenkins]

Hi, thanks for your contribution!
If you haven't already done so, could you please make sure you sign our CLA (https://jitsi.org/icla for individuals and https://jitsi.org/ccla for corporations)? We would unfortunately be unable to merge your patch unless we have that piece :(.

[smarizvi110]

Ran into a few issues with linting and forgot to pass the disableSelfView bool to the video popup. Should be fine now.

[smarizvi110]

Missed one lint due to expecting the linter to ignore the line. Fixed.

[saghul]

IIRC it used to be there but we had to move it for some reason.

We need to check with design.

[smarizvi110]

Made the pull request branch up-to-date with the main branch.