DebugFlags Picker

[quasarchimaere]

Pull request checklist

Please check if your PR fulfills the following requirements:

• [ ] Affected Tests have been added/altered (for bug fixes / features)
• [ ] Docs have been reviewed and added/updated if needed (for bug fixes / features)
• [X] Build was run locally and mvn install succeeds

Pull request type

Please check the type of change your PR introduces:

• [ ] Bugfix
• [X] Feature
• [X] Code style update (formatting, renaming)
• [X] Refactoring (no functional changes, no api changes)
• [ ] Build related changes
• [ ] Documentation content changes
• [ ] Other (please describe):

What is the current behavior?

Currently it is not possible to remove the debug flag from an existing atom

What is the new behavior?

• DebugFlags are editable (if debug mode is enabled or if the atom/draft already has debugFlags set)

Does this introduce a breaking change?

• [ ] Yes
• [X] No

Other information

Removed won.debugmode global var (debugmode status is only accessible via the redux state now)