chore: e2e general improvements (#43547)

## Problem

e2e tests are still flaky and not as fast as they could be

## Solution

- [x] Reset supabase instance: this makes the database visualiser tests
faster as there are less tables to screenshot
- [x] Improve the single file setup utilities so that they never block
local tests by cleaning them up before starting
- [x] Disable animations while running the tests (less time waiting for
animations to complete
- [x] Add utility functions that help reproducing flaky tests locally

.github/workflows/studio-e2e-test.yml

@@ -78,6 +78,10 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-nextjs-${{ hashFiles('pnpm-lock.yaml') }}-
 
+      - name: Reset supabase
+        if: steps.filter.outputs.studio == 'true'
+        run: rm -rf supabase && pnpm exec supabase init && mkdir supabase/functions
+
       - name: 🚀 Run Playwright tests against Vercel Preview
         if: steps.filter.outputs.studio == 'true'
         id: playwright