replace background image with svg

- add symlink svg
- fix validate playlist thumbnails

package.json

@@ -18,6 +18,7 @@
     "register-service-worker": "^1.7.1",
     "sass": "^1.49.0",
     "sass-loader": "^10",
+    "vite-svg-loader": "^3.4.0",
     "vue": "^3.0.0",
     "vue-debounce": "^3.0.2",
     "vue-router": "^4.0.0-0",
@@ -28,7 +29,8 @@
     "@vue/compiler-sfc": "^3.0.0",
     "eslint": "^8.7.0",
     "eslint-plugin-vue": "^8.3.0",
-    "vite": "^2.5.4"
+    "vite": "^2.5.4",
+    "vue-svg-loader": "^0.16.0"
   },
   "packageManager": "yarn@3.1.1"
 }