Feat/Allow to bulk toggle all third-party extensions from Manage Extensions (#5094)

* Feat - Allow to bulk toggle all third-party extensions from popup manager

* Fix - Prevent reloading the page if the final state is the same

* Fix - Handle bulk toggle with no extensions installed

* Update - Delete leftover debug logs

* Fix - Simplify extension toggle logic and improve readability

* Update - State that bulk toggle only affects external extensions

* Feat - Allow to restore bulk toggled extensions

* Update - Move bulk toggle to the third-party extensions header

* Uncenter section headers

---------

Co-authored-by: Cohee <18619528+Cohee1207@users.noreply.github.com>

public/css/extensions-panel.css

@@ -39,7 +39,7 @@ label[for="extensions_autoconnect"] {
     text-align: left;
 }
 
-.extensions_info h3 {
+.extensions_info h3:not(.margin0) {
     margin-bottom: 0.5em;
 }
 
@@ -112,6 +112,10 @@ label[for="extensions_autoconnect"] {
     color: limegreen;
 }
 
+.extensions_info .third_party_toolbar {
+    user-select: none;
+}
+
 input.extension_missing[type="checkbox"] {
     opacity: 0.5;
 }
@@ -157,4 +161,4 @@ input.extension_missing[type="checkbox"] {
     z-index: 1;
     margin-bottom: 10px;
     padding: 5px;
-}
+}