Move code out of Main.bs into new App class

[cewert]

Remake of #1319

This PR accomplishes three things:

• Move as much code out of Main.bs as possible allowing us to write unit tests for that code in the future
• Allows us to use roku-log(m.log) for all code in Main.bs (after m.screen.show())
  • Gives a clickable link in vscode that goes to the line that created the log output
    
  • Allows us to set log output as info warn verbose etc.
• Convert print statements found in new App class to roku-log statements

Changes

• Create App class for everything in main after m.screen.show()
• Move roku-log setup to JFScene so we can use it in main/App class
• Convert print statements found in new App class to roku-log statements

Issues

Fixes #1245

[cewert]

Running with no crashes and I got all the print statements from Main and the main loop converted to use roku-log.

[jellyfin-bot]

This pull request has merge conflicts. Please resolve the conflicts so the PR can be reviewed. Thanks!

[jellyfin-bot]

This pull request has been inactive for 30 days and will be automatically closed in 15 days if there is no further activity.

[jellyfin-bot]

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