Update menu item names

toolkit-showcase/assets/file-handling.metadata.json

@@ -4,14 +4,14 @@
   "routing_name": "file-handling",
   "name": {
     "de": "File Handling",
-    "en": "file handling"
+    "en": "File handling"
   },
   "short_name": {
     "de": "File Handling",
-    "en": "file handling"
+    "en": "File handling"
   },
   "description": {
-    "de": "Web Componente für file sink und file source. Für mehrere verschiedenen Quellen.",
+    "de": "Web Komponenten für file sink und file source. Für mehrere verschiedenen Quellen.",
     "en": "Web components for file sink and file source. For several different sources."
   },
   "subscribe": "lang:lang,entry-point-url:entry-point-url,nextcloud-auth-url:nextcloud-auth-url,nextcloud-web-dav-url:nextcloud-web-dav-url,nextcloud-name:nextcloud-name,nextcloud-file-url:nextcloud-file-url,show-nextcloud-file-picker:show-nextcloud-file-picker"

toolkit-showcase/assets/knowledge-base-web-page-element-view.metadata.json

@@ -3,12 +3,12 @@
   "module_src": "dbp-knowledge-base-web-page-element-view-demo-activity.js",
   "routing_name": "knowledge-base-web-page-element-view",
   "name": {
-    "de": "dbp-knowledge-base-web-page-element-view",
-    "en": "dbp-knowledge-base-web-page-element-view"
+    "de": "Knowledgebase webpage element view",
+    "en": "Knowledgebase webpage element view"
   },
   "short_name": {
-    "de": "dbp-knowledge-base-web-page-element-view",
-    "en": "dbp-knowledge-base-web-page-element-view"
+    "de": "Knowledgebase webpage element view",
+    "en": "Knowledgebase webpage element view"
   },
   "description": {
     "de": "Erlaubt das Einfügen von Webinhalten",