Add server unzipping (#3622)

* Initial unzipping feature

* Remove explicit backup provider naming from frontend

* CF placeholder

* Use regex for CF links

* Lint

* Add unzip warning for conflicting files, fix hydration error

* Adjust conflict modal ui

* Fix old queued ops sticking around, remove conflict warning

* Add vscode "editor.detectIndentation": true

.vscode/settings.json

@@ -2,6 +2,7 @@
   "prettier.endOfLine": "lf",
   "editor.formatOnSave": true,
   "eslint.validate": ["javascript", "javascriptreact", "typescript", "typescriptreact"],
+  "editor.detectIndentation": true,
   "editor.codeActionsOnSave": {
     "source.fixAll.eslint": "explicit"
   }