## Description
- Cleans up program titles & subtitles by removing newline characters
- Align the start of the guide to half hour, rounded down, ie 9:52->9:30
or 11:05->11:00
- Add some visual indication that a program has started before the guide
start time
- This is done by adding a `<` prefix to the title and using sharp 90
degree corners at the start instead of rounded
### Related issues
Closes#434Closes#435Closes#436
5c5db4c1ef