fix(vikunja): wrong image name

apps/vikunja/config.json

@@ -5,11 +5,9 @@
   "exposable": true,
   "port": 8135,
   "id": "vikunja",
-  "tipi_version": 4,
+  "tipi_version": 5,
   "version": "0.21.0",
-  "categories": [
-    "utilities"
-  ],
+  "categories": ["utilities"],
   "description": "The Todo-app to organize your life.",
   "short_desc": "The Todo-app to organize your life.",
   "author": "kolaente",

apps/vikunja/docker-compose.yml

@@ -1,4 +1,4 @@
-version: '3.7'
+version: "3.7"
 
 services:
   vikunja:
@@ -45,7 +45,7 @@ services:
       retries: 5
     networks:
       - tipi_main_network
-  
+
   vikunja-proxy:
     container_name: vikunja
     image: nginx
@@ -55,7 +55,7 @@ services:
       - ${APP_DATA_DIR}/data/proxy/nginx.conf:/etc/nginx/nginx.conf:ro
     depends_on:
       - vikunja-api
-      - vikunja-frontend
+      - vikunja
     restart: unless-stopped
     networks:
       - tipi_main_network