feat: add EdgeTX Clean Theme

[IdefixRC]

Simple and clean version utilizing the standard Edge TX color format

• Have you checked to ensure there aren't other open Pull Requests for the same update/change?

New Theme Submissions:

Have you included all the required elements?

• Have you included all the required elements in your theme?
• Are your screenshots in the correct resolution?

Summary by CodeRabbit

• New Features
  • Added the "EdgeTX Clean" theme with a complete color palette for primary, secondary, focus, edit, active, warning, and disabled states, plus quick-menu background and foreground styling options.

[coderabbitai]

📝 Walkthrough

Walkthrough

Adds a new YAML theme file THEMES/EdgeTXClean/theme.yml with metadata (name, author, info) and a complete colors map listing hex values for PRIMARY*, SECONDARY*, FOCUS, EDIT, ACTIVE, WARNING, DISABLED, and QM_BG/QM_FG.

Changes

EdgeTX Clean Theme Addition

Layer / File(s)	Summary
EdgeTX Clean Theme Configuration THEMES/EdgeTXClean/theme.yml	New theme file defining metadata (summary, name, author, info) and a complete color palette with primary, secondary, focus, edit, active, warning, disabled, and quick menu background/foreground colors.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Description check	✅ Passed	The pull request description follows the template structure with all checklist items marked complete, addressing both duplicate check and required theme elements.
Title check	✅ Passed	The title 'feat: add EdgeTX Clean Theme' directly and clearly describes the main change: adding a new theme file to the repository.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@THEMES/EdgeTXClean/theme.yml`:
- Line 1: Convert the theme.yml file to Unix LF line endings: replace CRLF with
LF in THEMES/EdgeTXClean/theme.yml (e.g., run dos2unix or use your editor's
"normalize to LF" feature), ensure Git doesn't reintroduce CRLF (set
core.autocrlf=false or add a .gitattributes entry for *.yml text eol=lf), save
and commit the normalized file so YAMLlint/CI no longer reports "expected \n".

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: 259ed11d-a667-4284-84a3-c7bb158ea755

📥 Commits

Reviewing files that changed from the base of the PR and between df89aea and 1ba6f43.

⛔ Files ignored due to path filters (10)

• THEMES/EdgeTXClean/background.png is excluded by !**/*.png
• THEMES/EdgeTXClean/background_320x240.png is excluded by !**/*.png
• THEMES/EdgeTXClean/background_320x480.png is excluded by !**/*.png
• THEMES/EdgeTXClean/background_480x272.png is excluded by !**/*.png
• THEMES/EdgeTXClean/background_480x320.png is excluded by !**/*.png
• THEMES/EdgeTXClean/background_800x480.png is excluded by !**/*.png
• THEMES/EdgeTXClean/logo.png is excluded by !**/*.png
• THEMES/EdgeTXClean/screenshot1.png is excluded by !**/*.png
• THEMES/EdgeTXClean/screenshot2.png is excluded by !**/*.png
• THEMES/EdgeTXClean/screenshot3.png is excluded by !**/*.png

📒 Files selected for processing (1)

• THEMES/EdgeTXClean/theme.yml

[pfeerick]

LGTM... thanks for your contribution! :)