Presenter Remote app communication improvements

Fix: Resolved issue preventing access to Google Slides

Fix: Fixed issue with authenticating for Google Slides

Fix: Fixed issue with playing YouTube videos

Fix: Fixed issue with importing PowerPoint presentations, slides didn't import in order

Fix: Fixed issue with PowerPoint thumbnail generation on macOS 12.3

New: Ability to re-format "lines per slide" in Song Editor.

New: When importing lyrics from SongSelect, the song's default key will be set correctly.

Fix: Cue list thumbnails now aligned correctly in dropdown.

Fix: Total slide count now correct in "Slides" dropdown.