UI patches (#905)

- Show 0 clients when NT server props are undefined
- Add Prettier 

---------

Co-authored-by: Matthew Morley <matthew.morley.ca@gmail.com>

photon-client/package.json

@@ -7,7 +7,9 @@
     "build": "run-p build-only",
     "preview": "vite preview --port 4173",
     "build-only": "vite build",
-    "lint": "eslint . --ext .vue,.js,.jsx,.cjs,.mjs,.ts,.tsx,.cts,.mts --fix --ignore-path .gitignore"
+    "lint": "eslint . --ext .vue,.js,.jsx,.cjs,.mjs,.ts,.tsx,.cts,.mts --fix --ignore-path .gitignore",
+    "format": "prettier --write src/",
+    "check-format": "prettier --check src/"
   },
   "dependencies": {
     "@fontsource/prompt": "^5.0.5",
@@ -22,10 +24,13 @@
     "vuetify": "^2.6.15"
   },
   "devDependencies": {
+    "@rushstack/eslint-patch": "^1.3.2",
+    "@vue/eslint-config-prettier": "^8.0.0",
+    "@vue/eslint-config-typescript": "^11.0.3",
+    "prettier": "^3.0.0",
     "@types/node": "^16.11.45",
     "@types/three": "^0.154.0",
     "@vitejs/plugin-vue2": "^2.2.0",
-    "@vue/eslint-config-typescript": "^11.0.3",
     "@vue/tsconfig": "^0.1.3",
     "deepmerge": "^4.3.1",
     "eslint": "^8.45.0",