Jetpack plugin install Material3

[nbradbury]

This PR converts the jetpackplugininstall package to Material3. I've modified the main activity to start the Jetpack install flow at startup. I'll remove this before merging.

https://github.com/user-attachments/assets/c345bcfe-f4b3-4574-8db9-615ecbdcf5c4

[dangermattic]

	1 Warning
:warning:	PR is not assigned to a milestone.

Generated by :no_entry_sign: Danger

[wpmobilebot]

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

	App Name	Jetpack
	Flavor	Jalapeno
	Build Type	Debug
	Version	pr21371-f824d5d
	Commit	f824d5d93b0addd567a744350a1e150a6d87ec8f
	Direct Download	jetpack-prototype-build-pr21371-f824d5d.apk

Note: Google Login is not supported on these builds.

[wpmobilebot]

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

	App Name	WordPress
	Flavor	Jalapeno
	Build Type	Debug
	Version	pr21371-f824d5d
	Commit	f824d5d93b0addd567a744350a1e150a6d87ec8f
	Direct Download	wordpress-prototype-build-pr21371-f824d5d.apk

Note: Google Login is not supported on these builds.

[sonarcloud[bot]]

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 SonarCloud