chore(redhat-resource-optimization): migrate rhdh-theme and fix package name in readme and changelog after migration

[christoph-jerolimov]

Hey, I just made a Pull Request!

• Migrate from rhdh-theme to the theme within rhdh-plugins repo
• Fix package name in README and CHANGELOG
• Align pluginId in package.json to group pluginPackages

✔️ Checklist

• A changeset describing the change and affected packages. (more info)
• Added or Updated documentation
• Tests for new functionality and regression tests for bug fixes
• Screenshots attached (for UI changes)

[rhdh-gh-app]

Changed Packages

Package Name	Package Path	Changeset Bump	Current Version
app	workspaces/redhat-resource-optimization/packages/app	none	v0.0.5
@red-hat-developer-hub/plugin-redhat-resource-optimization-backend	workspaces/redhat-resource-optimization/plugins/redhat-resource-optimization-backend	patch	v2.0.1
@red-hat-developer-hub/plugin-redhat-resource-optimization-common	workspaces/redhat-resource-optimization/plugins/redhat-resource-optimization-common	patch	v2.0.0
@red-hat-developer-hub/plugin-redhat-resource-optimization	workspaces/redhat-resource-optimization/plugins/redhat-resource-optimization	patch	v2.0.0

[christoph-jerolimov]

Hi @ydayagi @mareklibra @batzionb @PreetiW, can you take a look? Thanks :)

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
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