feat: inject header right

[ClaudeArs]

Summary of Changes

This PR makes all header buttons injectable

Related Issues

N/A

Pull Request Checklist

Tick all boxes below to demonstrate that you have completed the respective task. If the item does not apply to your this PR check it anyway to make it apparent that there's nothing to do.

• All commits contain a DCO Signed-off-by line (we use the DCO GitHub app to enforce this);
• Updated LICENSE-3RD-PARTY.md for any added dependencies or vendored components;
• Updated documentation as needed for changed code and new or modified features;
• Added sufficient tests so that overall code coverage is not reduced.

If you have any questions to any of the points above, just submit and ask! This checklist is here to help you, not to deter you from contributing!

Pro Tip 🤓

• Read our contribution guide at least once; it will save you a few review cycles!
• Your PR will likely not be reviewed until all the above boxes are checked and all automated tests have passed.

PR template adapted from the Python attrs project.

[bryce-mcmath]

This is a better approach! My only two gripes are:

1. These are actually screen options, not stack options. If we call them stack options then we will have two separate and very different defaultStackOptions variables in our codebase.
2. You've moved some of the screen options to the defaultStackOptions but not all of them. It might be good to either keep them all in place, or move them all to the new defaultStackOptions. I would lean towards leaving them all in place.

[sonarcloud]

Quality Gate passed

Issues
1 New issue
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[MosCD3]

Does have some overlap with #1321 could work out a complete solution
I am not in a favour of mixing any stackOptions with screen options

[bryce-mcmath]

Ah right @ClaudeArs sorry I forgot a version of this already exists using dictionaries. See packages/legacy/core/App/navigators/defaultStackOptions.tsx and OnboardingStack. Might be good to have a chat with @MosCD3 as he was the one who implemented the first approach.

[ClaudeArs]

Ok @MosCD3 , the goal of this PR is to give the possibility to inject a button in the right part of the header. According to you, what would be the best way to proceed?