textarea elements rtl/ltr fixes

Fixing textareas resizer side on 3p-filters and the blinker not behaving right when writing in English on some textareas.

Recomitting this after some realizations.
Well, I have just realized that there is a need for dir="auto" property on all textareas ,EXCEPT the one on the 3p-filters, to correct the position of the blinker while writing in English - which I still don't quite sure.
The textarea on 3p-filters only needs text-align: ltr rule so that all the text will start from left to right.

The direction rule only needed for the textarea in 3p-filters to have the resize grabber on the right side (in rtl languages).