Troubleshooting after Jellyfin update 2.0.0

[1hitsong]

It's too bad that Jellyfin 2.0 couldn't be backwards compatible to Roku boxes being left behind by Roku software updates, but I do understand developers can't guarantee compatibility forever.

Good news! I rewrote the function in the OSD that used the function that was added in Roku OS 12.0. The next release will again work for Roku 4 and other legacy devices.

You can track this update in this PR: https://github.com/jellyfin/jellyfin-roku/pull/1594

72 lines to replace 1 function call

Going forward, we'll do all we can to continue supporting legacy devices.