chore: Downgrade prettier to v3 (supabase#31099)

* Bump all versions of prettier to 3.2.4

* Remove obsolete config in prettier.

Author: ivasilov

.prettierrc

@@ -6,7 +6,6 @@
   "printWidth": 100,
   "endOfLine": "lf",
   "sqlKeywordCase": "lower",
-  "pluginSearchDirs": false,
   "plugins": ["prettier-plugin-sql-cst"],
   "overrides": [
     {

apps/studio/package.json

@@ -170,7 +170,7 @@
     "msw": "^2.3.0",
     "next-router-mock": "^0.9.13",
     "postcss": "^8.4.31",
-    "prettier": "^4.0.0-alpha.8",
+    "prettier": "3.2.4",
     "tailwindcss": "^3.4.1",
     "typescript": "~5.5.0"
   }