Parth Nanda

Solves #8

Lab courses feedback form are having a bit different structure from the theory courses and there is no check on 'textarea' queryselecter length before filling the values.

I was working on the [PR](https://github.com/ankidroid/Anki-Android/pull/14182) and it seems that the gestures code have been changed a lot but the docs doesn't seem to have changed. https://docs.ankidroid.org/#gestures