37 resolve issues

[rzlm]

fixes #37
completed:

• added fadein animation to maintain smoothness when navigating between screens
• replaced app logo in splash screen
• updated nodejs version in workflows.yaml
• fixed the issue w events on homepage
• fixed the issue w prayer times
• created ui to toggle between colour themes
  to do:
• test notifications, allow colour theme to be changed when clicked, Ensure links are updated,