[Feature] Updates to inventory icons, context menus, action use, and observer visibility (#1814)

* Update inventory controls and permissions filtering

* Also disable prosemirror editors

* Address context menu deprecation warnings

* Fix context menu detection for actions

* Refine logic for use action when hovering over item icon

styles/less/sheets/actors/character/sidebar.less

@@ -316,9 +316,9 @@
                     border-radius: 3px;
                     background: light-dark(@dark-blue, @golden);
                     clip-path: none;
-                    cursor: pointer;
                     display: flex;
                     align-items: center;
+                    justify-content: center;
                     gap: 4px;
                     border: 1px solid transparent;
                     transition: all 0.3s ease;