chore(server): create hidden note for the dictionary

apps/server/src/assets/translations/en/server.json

@@ -313,6 +313,7 @@
     "shared-notes-title": "Shared Notes",
     "bulk-action-title": "Bulk Action",
     "backend-log-title": "Backend Log",
+    "custom-dictionary-title": "Custom Dictionary",
     "user-hidden-title": "User Hidden",
     "launch-bar-templates-title": "Launch Bar Templates",
     "base-abstract-launcher-title": "Base Abstract Launcher",

apps/server/src/services/hidden_subtree.ts

@@ -93,6 +93,12 @@ function buildHiddenSubtreeDefinition(helpSubtree: HiddenSubtreeItem[]): HiddenS
                     { type: "label", name: "fullContentWidth" }
                 ]
             },
+            {
+                id: "_customDictionary",
+                title: t("hidden-subtree.custom-dictionary-title"),
+                type: "code",
+                icon: "bx-book"
+            },
             {
                 // place for user scripts hidden stuff (scripts should not create notes directly under hidden root)
                 id: "_userHidden",