This reworks the style of the event widgets to make them match the
latest designs. This also supports the light and dark theme preferences
and fixes some spacing inconsistencies and errors.
- The orientation of events only affects how their content is laid out,
not their style.
- Events are fully colored accordingly to their calendar's color.
- Timed events have a semi-transparent background and a kind of opaque
knob on their left.
- Timed events have their text colored according to the theme.
- Lasting events are fully opaque, with no knob.
- Lasting events have their text colored according to their calendar's
color.
This purposefully leaves the indentation broken to help reviewing the
changes.
This explicitely allows the hour widget and the content as a whole to
overflow horizontally, and hides what overflows, keeping the data within
the boundaries of the widget while still allowing it to reach very
narrow sizes without error messages.
This purposefully leaves the indentation broken to help reviewing the
actual changes.