Improve navigation sub-menu and tabs effects (#2971)

* Improve nav border and colors on active and non-active

* Remove margin-top effect on active nav

* Use opacity / bold instead of color change on nav

* Remove dropdown items label in sub-menu and add a class active

* Position sub-menu to fixed

* Autoclose dropdown sub-menu only on outside click

* Remove open dropdown on hover in sub-menu

* Show reusable h1 for dropdown item in sub-menu

* Put reusable sub-menu h1 styles to mixins

* Add icons to sub-menu dropdown-item h1

* Make all the sub-menu accessible with focus

Co-authored-by: kimsible <kimsible@users.noreply.github.com>

2 files changed, 0 insertions, 7 deletions

diff --git a/client/src/app/+admin/plugins/plugins.component.html b/client/src/app/+admin/plugins/plugins.component.html
index e2b927db8..199ae12cf 100644
--- a/client/src/app/+admin/plugins/plugins.component.html
+++ b/client/src/app/+admin/plugins/plugins.component.html
@@ -1,6 +1,4 @@
 <div class="admin-sub-header">
-  <h1 i18n class="form-sub-title">Plugins/Themes</h1>
-
   <div class="admin-sub-nav">
     <a i18n routerLink="list-installed" routerLinkActive="active">Installed</a>
 
diff --git a/client/src/app/+admin/plugins/plugins.component.scss b/client/src/app/+admin/plugins/plugins.component.scss
index 04ca8126a..ce9825f53 100644
--- a/client/src/app/+admin/plugins/plugins.component.scss
+++ b/client/src/app/+admin/plugins/plugins.component.scss
@@ -1,11 +1,6 @@
 @import '_variables';
 @import '_mixins';
 
-.form-sub-title {
-  flex-grow: 0;
-  margin-right: 30px;
-}
-
 @media screen and (max-width: $small-view) {
   ::ng-deep .plugins .plugin .first-row {
     flex-wrap: wrap;