Revert perf changes (#3217)

Step 1 of the master plan 😂 

![CleanShot 2024-03-19 at 16 05
08](https://github.com/tldraw/tldraw/assets/2523721/7d2afed9-7b69-4fdb-8b9f-54a48c61258f)

This:
- Reverts #3186 
- Reverts #3160 (there were some conflicting changes so it's not a
straight revert)
- Reverts most of #2977 


### Change Type

<!-- ❗ Please select a 'Scope' label ❗️ -->

- [ ] `sdk` — Changes the tldraw SDK
- [ ] `dotcom` — Changes the tldraw.com web app
- [ ] `docs` — Changes to the documentation, examples, or templates.
- [ ] `vs code` — Changes to the vscode plugin
- [x] `internal` — Does not affect user-facing stuff

<!-- ❗ Please select a 'Type' label ❗️ -->

- [ ] `bugfix` — Bug fix
- [ ] `feature` — New feature
- [ ] `improvement` — Improving existing features
- [x] `chore` — Updating dependencies, other boring stuff
- [ ] `galaxy brain` — Architectural changes
- [ ] `tests` — Changes to any test code
- [ ] `tools` — Changes to infrastructure, CI, internal scripts,
debugging tools, etc.
- [ ] `dunno` — I don't know

apps/examples/package.json

@@ -29,8 +29,8 @@
 		"dev": "vite --host",
 		"build": "vite build",
 		"lint": "yarn run -T tsx ../../scripts/lint.ts",
-		"e2e": "NODE_ENV=test && playwright test -c ./e2e/playwright.config.ts",
-		"e2e-ui": "NODE_ENV=test && playwright test --ui -c ./e2e/playwright.config.ts"
+		"e2e": "playwright test -c ./e2e/playwright.config.ts",
+		"e2e-ui": "playwright test --ui -c ./e2e/playwright.config.ts"
 	},
 	"dependencies": {
 		"@playwright/test": "^1.38.1",