chore(tables): fully remove fractional-indexing dependency and differential test

Author: TheodoreSpeaks

apps/sim/lib/fractional-indexing/fractional-indexing.test.ts

@@ -232,7 +232,6 @@
     "@vitejs/plugin-react": "^4.3.4",
     "@vitest/coverage-v8": "^4.1.0",
     "autoprefixer": "10.4.21",
-    "fractional-indexing": "3.2.0",
     "jsdom": "^26.0.0",
     "postcss": "^8",
     "react-email": "4.3.2",