Fix resource filters dropdown on small vertical screens

Add config based theme tweaking

Some fixes

- Move modals to bottom on mobile, making them easy to reach
- Fix iOS Safari hamburguer menu click
- Fix content width on between 992 and 1280px
- Fix Header field type

Merge pull request #19 from yuriy-martini/master

Some fixes

Merge pull request #15 from mtawil/master

Support both RTL and LTR directions

Fix sidebar positioning #9 and resource index filters #1

Fix some forms fields types visualization #8

Fix resource actions selection component #1

Merge branch 'master' of github.com:gregoriohc/laravel-nova-theme-res…

…ponsive

Fixes #3