fix(internal, dangerfile): fix changelog entries for dangerfiles and PR template (#35541)

Summary:
A few days back leotm pointed out how the dangerfile was disaligned with the docs around the valid changelog entries for categories and types here: https://github.com/facebook/react-native/pull/35443#issuecomment-1327449113

I dug a bit deeper into the whole thing and went to the source of truth, which is the changelog generator, in particular here: https://github.com/microsoft/rnx-kit/blob/main/incubator/rn-changelog-generator/src/utils/getChangeDimensions.ts

So I've updated the dangerfile to respect the options listed there. Also did a parallel PR on the website side: https://github.com/facebook/react-native-website/pull/3447

So now all comms will be aligned.

## Changelog

<!-- Help reviewers and the release process by writing your own changelog entry. For an example, see:
https://reactnative.dev/contributing/changelogs-in-pull-requests
-->

[INTERNAL] [FIXED] - fix changelog entries for dangerfiles and PR template

Pull Request resolved: https://github.com/facebook/react-native/pull/35541

Test Plan: N/A

Reviewed By: sammy-SC

Differential Revision: D41686913

Pulled By: cortinico

fbshipit-source-id: 2297b4a3209188bda4a609b60860de35c5e7e6df