Summary:
Just a couple of minor fixes in the `template/` folder:
- Remove a trailing space in `rn_edit_text_material.xml` (this was the _only_ trailing space present in a newly generated RN project), which results in the check against the empty tree object failing:
```
$ git diff --check 4b825dc -- template/
template/android/app/src/main/res/drawable/rn_edit_text_material.xml:23: trailing whitespace.
+ <!--
```
- Add missing newline at end of file in `.watchmanconfig` and `app.json` - Both are text files, and each line (including the last) is expected to end with a newline character (flagged by Git, and also visible as a warning on GitHub):
<img width="369" alt="image" src="https://user-images.githubusercontent.com/743291/214195867-81c8e622-2130-44d4-bdaf-588e3510c109.png">
## Changelog
[GENERAL] [FIXED] - Fix whitespace and newline at EOF in template
Pull Request resolved: https://github.com/facebook/react-native/pull/35939
Reviewed By: christophpurrer
Differential Revision: D42698256
Pulled By: rshest
fbshipit-source-id: 765fd41d4f501aec578755c754ea0ecb290ae6ca
efe5f62f91
