- Whenever a scrolling context is entered/exited, send a ScrollUpdate event.
- StatusBar maintains a stack of scrolling contexts and displays the
last one, if it exists. Each context is associated with a ComponentId.
- To handle dangling contexts after their Components aren't visible
anymore, send a VisibilityChange event in situations where that scenario
is possible.
This adds the config option listing.sidebar_divider to set the character
used to show the divider (defaults to ' ') along with the corresponding
theme in mail.sidebar_divider which defaults to the default theme.
Text attributes have been rewritten as bit flags, so for example instead of
"BoldUnderline" you'd have to define "Bold | Underline" in your theme
settings.
Requested in #21
Merge ui crate with root crate.
In preparation for uploading `meli` as a separate crate on crates.io.
Workspace crates will need to be published as well and having a separate
`ui` crate and binary perhaps doesn't make sense anymore.