Undo essentials limit

src/zen/tabs/ZenPinnedTabManager.mjs

@@ -52,8 +52,6 @@
   }
 
   class ZenPinnedTabManager extends ZenDOMOperatedFeature {
-    MAX_ESSENTIALS_TABS = 12;
-
     async init() {
       if (!this.enabled) {
         return;
@@ -1020,7 +1018,7 @@
           (tab.getAttribute('usercontextid') || 0) !=
             gZenWorkspaces.getActiveWorkspaceFromCache().containerTabId &&
           gZenWorkspaces.containerSpecificEssentials
-        ) && gBrowser._numZenEssentials < this.MAX_ESSENTIALS_TABS
+        )
       );
     }