Refactor demo to toolkit showcase

.gitignore

 node_modules
-demo/dist
+toolkit-showcase/dist
 .idea
 yarn-error.log
\ No newline at end of file

demo/README.md → toolkit-showcase/README.md

-# Frontend Toolkit Demo
+# Frontend Toolkit Showcase
 
 ## Setup
 

demo/assets/dbp-toolkit-demo.topic.metadata.json.ejs → toolkit-showcase/assets/dbp-toolkit-showcase.topic.metadata.json.ejs

 {
   "name": {
-    "de": "Toolkit Demo",
-    "en": "Toolkit Demo"
+    "de": "Toolkit Showcase",
+    "en": "Toolkit Showcase"
   },
   "short_name": {
-    "de": "Toolkit Demo",
-    "en": "Toolkit Demo"
+    "de": "Toolkit Showcase",
+    "en": "Toolkit Showcase"
   },
   "description": {
     "de": "Mit dieser Applikation die Funktion der DBP Web Components testen",
     "en": "With this application you can test the function of the DBP web components"
   },
-  "routing_name": "toolkit-demo",
+  "routing_name": "toolkit-showcase",
   "activities": [
     {"path": "person-select.metadata.json"},
     {"path": "knowledge-base-web-page-element-view.metadata.json"},

demo/assets/manifest.json → toolkit-showcase/assets/manifest.json

 {
-  "short_name": "Toolkit Demo",
-  "name": "Toolkit Demo",
-  "start_url": "./dbp-toolkit-demo.html",
+  "short_name": "Toolkit Showcase",
+  "name": "Toolkit Showcase",
+  "start_url": "./dbp-toolkit-showcase.html",
   "icons": [
     {
-      "src": "local/dbp-toolkit-demo/icon-192.png",
+      "src": "local/dbp-toolkit-showcase/icon-192.png",
       "type": "image/png",
       "sizes": "192x192"
     },
     {
-      "src": "local/dbp-toolkit-demo/icon-512.png",
+      "src": "local/dbp-toolkit-showcase/icon-512.png",
       "type": "image/png",
       "sizes": "512x512"
     }