Initial commit. Added necessary properties in order to override bootstrap styles. This branch is for #7887.
Made unfocused pane look unfocused.
Fix for #9545.
Making sure that the anchors in jstree will never show a hover state.
Project dropdown toggle needs right margin.
Pushing sidebar icons to the back of Working Files label when they overlap.
Added subtle border for dark menus.
Updated .not-editor styling based on @TomMalbran's feedback.
Merge pull request #9560 from adobe/larz/v1-ui-audit

Brackets V1 UI Polish