Move vscode settings to the frontend folder

Since it applies to all of frontend, I think it makes more sense to have it here instead of src

(cherry picked from commit e12c679cd8961ec9d2ef744761303831b81e64fb)

frontend/src/.vscode/settings.json

@@ -1,23 +0,0 @@
-// Place your settings in this file to overwrite default and user settings.
-{
-  "files.insertFinalNewline": true,
-
-  "files.exclude": {
-    "**/node_modules": true,
-    "**/*.d.css": true
-  },
-
-  "editor.formatOnSave": false,
-  "editor.codeActionsOnSave": {
-    "source.fixAll": true
-  },
-
-  "typescript.preferences.quoteStyle": "single",
-
-  "eslint.validate": [
-    "javascript",
-    "javascriptreact",
-    "typescript",
-    "typescriptreact"
-  ],
-}