added page and edit backend for edit calendar by token

backend/openapi.yml

@@ -1,7 +1,12 @@
 openapi: 3.0.0
 info:
-  title: Your API
-  version: 1.0.0
+  title: HTWKalendar API
+  version: 1.0.1
+servers:
+  - url: https://cal.ekresse.de
+    description: Production server
+  - url: http://localhost:8090
+    description: Local server
 paths:
   /api/fetchPlans:
     get:
@@ -29,7 +34,20 @@ paths:
           description: Successful response
   /api/feed:
     get:
-      summary: Get iCal Feed
+      summary: Get iCal Feed for calendar
+      responses:
+        '200':
+          description: Successful response
+  /api/collections/feeds/records/{id}:
+    get:
+      summary: Get Modules selected for iCal feed
+      parameters:
+        - name: id
+          in: path
+          description: calendar token
+          required: true
+          schema:
+            type: string
       responses:
         '200':
           description: Successful response