API - Downward compatibility

[Lord-Grey]

Summary

• API: Downward compatibility - Use first running instance, if no instance was given nor switched to.
• API - Fix getconfig after API clean-up
• CodeQL - Fix Remote property injection
• Refactored: Streamlined the UI code
• UI: Instance listings are sorted, enabled instances are high-lighted in drop-downs
• UI: LED preview - show instance's name the preview is applicable to
• Fix - Hue lights were not started
• Fixed Removed stale _logger object (Crashes on Ubuntu Noble #1863)

What kind of change does this PR introduce? (check at least one)

• Bugfix
• Feature
• Code style update
• Refactor
• Docs
• Build-related changes
• Other, please describe:

If changing the UI of web configuration, please provide the before/after screenshot:

Does this PR introduce a breaking change? (check one)

• Yes
• No

If yes, please describe the impact and migration path for existing setups:

The PR fulfills these requirements:

• When resolving a specific issue, it's referenced in the PR's body (e.g. Fixes: #xxx[,#xxx], where "xxx" is the issue number)

If adding a new feature, the PR's description includes:

• A convincing reason for adding this feature
• Related documents have been updated (docs/docs/en)
• Related tests have been updated

PLEASE DON'T FORGET TO ADD YOUR CHANGES TO CHANGELOG.MD

• Yes, CHANGELOG.md is also updated

To avoid wasting your time, it's best to open a feature request issue first and wait for approval before working on it.

Other information:
fixes #1863