🧽 Cleanup of various UX aspects

package.json

@@ -33,6 +33,7 @@
     "babel-polyfill": "^6.26.0",
     "better-docs": "^2.3.2",
     "calibre-opds": "^1.0.7",
+    "chokidar": "^3.5.2",
     "comlink-loader": "^2.0.0",
     "dayjs": "^1.10.6",
     "ellipsize": "^0.1.0",
@@ -50,9 +51,9 @@
     "react-dom": "^17.0.1",
     "react-fast-compare": "^3.2.0",
     "react-final-form": "^6.5.3",
+    "react-loader-spinner": "^4.0.0",
     "react-select": "^4.3.1",
     "react-sliding-pane": "^7.0.0",
-    "react-spinners": "^0.11.0",
     "react-table": "^7.7.0",
     "react-window-dynamic-list": "^2.3.5",
     "sharp": "^0.28.1",