Update Issue template forms

[BotBlake]

Changes

• Rewrote all issue templates to new issue forms
• Minor changes in template wording
• Renamed the Old Templates to "legacy" (they should be removed before merge)

If you want to checkout the new issue templates:
I made this branch default on my fork and enabled issue reports on it.
So feel free to take a look there.

I also still kept the old markdown templates for easier comparison on your end.
However I highly suggest deleting them before merging.

(In case of merge conflicts because I renamed them, I can also delete them within the PR 😅 )

Issues

[BotBlake]

I also wanted to point out that the current feature_request.md template attempts to add the feature label, which does not exist in the Roku repository. I’ve carried this behavior over to the new feature_request.yml form but thought it might be worth mentioning in case the label needs to be adjusted or the behavior revised.

[jimdogx]

I also wanted to point out that the current feature_request.md template attempts to add the feature label, which does not exist in the Roku repository. I’ve carried this behavior over to the new feature_request.yml form but thought it might be worth mentioning in case the label needs to be adjusted or the behavior revised.

I've renamed the "new-feature" label to "feature"