Remove unused dependencies

package.json

@@ -13,13 +13,11 @@
     "@babel/preset-env": "^7.12.1",
     "autoprefixer": "^9.8.6",
     "babel-loader": "^8.2.1",
-    "browser-sync": "^2.26.13",
     "clean-webpack-plugin": "^3.0.0",
     "confusing-browser-globals": "^1.0.10",
     "copy-webpack-plugin": "^6.0.3",
     "css-loader": "^5.0.1",
     "cssnano": "^4.1.10",
-    "del": "^6.0.0",
     "eslint": "^7.13.0",
     "eslint-plugin-compat": "^3.5.1",
     "eslint-plugin-eslint-comments": "^3.2.0",
@@ -27,25 +25,12 @@
     "eslint-plugin-promise": "^4.2.1",
     "expose-loader": "^1.0.1",
     "file-loader": "^6.2.0",
-    "gulp": "^4.0.2",
-    "gulp-babel": "^8.0.0",
-    "gulp-cli": "^2.3.0",
-    "gulp-concat": "^2.6.1",
-    "gulp-htmlmin": "^5.0.1",
-    "gulp-if": "^3.0.0",
-    "gulp-imagemin": "^7.1.0",
-    "gulp-inject": "^5.0.5",
-    "gulp-mode": "^1.0.2",
-    "gulp-postcss": "^8.0.0",
-    "gulp-sass": "^4.0.2",
-    "gulp-sourcemaps": "^3.0.0",
-    "gulp-terser": "^1.4.1",
     "html-loader": "^1.1.0",
     "html-webpack-plugin": "^4.5.0",
-    "lazypipe": "^1.0.2",
-    "node-sass": "^5.0.0",
     "postcss-loader": "^3.0.0",
     "postcss-preset-env": "^6.7.0",
+    "sass": "^1.29.0",
+    "sass-loader": "^10.0.5",
     "source-map-loader": "^1.1.1",
     "style-loader": "^2.0.0",
     "stylelint": "^13.7.2",
@@ -56,7 +41,6 @@
     "webpack-cli": "^4.0.0",
     "webpack-dev-server": "^3.11.0",
     "webpack-merge": "^4.2.2",
-    "webpack-stream": "^6.1.1",
     "workbox-webpack-plugin": "^5.1.4",
     "worker-plugin": "^5.0.0"
   },
@@ -71,7 +55,6 @@
     "flv.js": "^1.5.0",
     "headroom.js": "^0.12.0",
     "hls.js": "^0.14.16",
-    "howler": "^2.2.1",
     "intersection-observer": "^0.11.0",
     "jellyfin-apiclient": "^1.4.2",
     "jellyfin-noto": "https://github.com/jellyfin/jellyfin-noto",
@@ -84,8 +67,6 @@
     "page": "^1.11.6",
     "pdfjs-dist": "2.5.207",
     "resize-observer-polyfill": "^1.5.1",
-    "sass": "^1.29.0",
-    "sass-loader": "^10.0.5",
     "screenfull": "^5.0.2",
     "sortablejs": "^1.12.0",
     "swiper": "^6.3.5",