Use compose scaffold in the license activity

[caarmen]

Integrate a compose material theme in the app.

Add a compose scaffold in the LicenseScreen.

Remove the activity_license.xml layout file!

[github-actions]

Overall Project	82.32% -0.7%	🍏
Files changed	84.72%	🍏

File	Coverage
Color.kt	100%	🍏
LicenseActivity.kt	83.5% -1.32%	🍏
Theme.kt	80.69% -19.31%	🍏
LicenseScreen.kt	73.1% -10.73%	🍏

[github-actions]

Overall Project	82.49% -0.64%	🍏
Files changed	85.83%	🍏

File	Coverage
Color.kt	100%	🍏
LicenseActivity.kt	83.5% -1.32%	🍏
Theme.kt	80.69% -19.31%	🍏
LicenseScreen.kt	77.48% -9.57%	🍏

[github-actions]

Overall Project	82.49% -0.64%	🍏
Files changed	85.83%	🍏

File	Coverage
Color.kt	100%	🍏
LicenseActivity.kt	83.5% -1.32%	🍏
Theme.kt	80.69% -19.31%	🍏
LicenseScreen.kt	77.48% -9.57%	🍏