chore: bump dprint-plugin-typescript to 0.96.0, remove deno-fmt-ignore-file (#33839)
## Summary
- Bumps dprint-plugin-typescript from 0.95.15 to 0.96.0
- Enables the new `functionExpression.flatIife` option
- Removes all `// deno-fmt-ignore-file` directives from IIFE-wrapped
lazy-loaded scripts
### Background
During the lazy-loaded script conversions (ext/ IIFE rewrites), we had
to add `// deno-fmt-ignore-file` to every converted file because dprint
would indent the entire IIFE body by 2 spaces, producing massive diffs.
dprint-plugin-typescript 0.96.0 (released today) adds the
`functionExpression.flatIife` option
(dprint/dprint-plugin-typescript#781) which tells the formatter to not
indent the body of `(function () { ... })()` patterns. This lets us
remove all the ignore directives while keeping the flat indentation
style.