[Wear App] Update Wear app with Play Store review rejection requests

[ThomazFB]

Summary

Brings to trunk the changes made to the Wear app to go through the recent Play Store rejection spree.

The changes are:

• Update the app's splash screen icon
• Update the app's splash screen background color
• Add a configChanges attributes for the Main Activity in AndroidManifest to avoid issues with the NavController reference
• Updates the Login error screen string to avoid UI clipping

Update release notes:

• I have considered if this change warrants user-facing release notes and have added them to RELEASE-NOTES.txt if necessary.

Reviewer (or Author, in the case of optional code reviews):

Please make sure these conditions are met before approving the PR, or request changes if the PR needs improvement:

• The PR is small and has a clear, single focus, or a valid explanation is provided in the description. If needed, please request to split it into smaller PRs.
• Ensure Adequate Unit Test Coverage: The changes are reasonably covered by unit tests or an explanation is provided in the PR description.
• Manual Testing: The author listed all the tests they ran, including smoke tests when needed (e.g., for refactorings). The reviewer confirmed that the PR works as expected on big (tablet) and small (phone) in case of UI changes, and no regressions are added.

[dangermattic]

	1 Message
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Generated by 🚫 Danger

[wpmobilebot]

📲 You can test the changes from this Pull Request in WooCommerce-Wear Android by scanning the QR code below to install the corresponding build.

	App Name	WooCommerce-Wear Android
	Platform	⌚️ Wear OS
	Flavor	Jalapeno
	Build Type	Debug
	Commit	51731ee
	Direct Download	woocommerce-wear-prototype-build-pr12634-51731ee.apk

[wpmobilebot]

📲 You can test the changes from this Pull Request in WooCommerce Android by scanning the QR code below to install the corresponding build.

	App Name	WooCommerce Android
	Platform	📱 Mobile
	Flavor	Jalapeno
	Build Type	Debug
	Commit	51731ee
	Direct Download	woocommerce-prototype-build-pr12634-51731ee.apk