Instead of defining the icons for a source only within the `SourceIcon`
widget, the icons are now defined as extension for the `FDSourceType`
enum. The background and foreground colors are also defined within the
enum now. This allows us to access the icon of a source outside of the
`SourceIcon` widget and we only have to touch the `source.dart` file
when adding a new source type.
This commit adds a new source type "pinterest", which can be used to
follow the post of an user or a board on Pinterest. To use the new
source type a user can select the "Pinterest" item in the add source
modal. In the form a user can provide the username or board he wants to
follow via FeedDeck.
In the corresponding Supabase function we then convert the input
provided by the user to an valid RSS feed url for Pinterest. This means
that we have to add `/feed.rss` for users and `.rss` for boards to the
Pinterest url.
Then we generate the source and items as for the other sources and reuse
the existing components to render the preview and details item. We had
to adjust the rendering logic for these items, to ignore empty values,
from which also other sources will benefit.
- Adjust "Release" section in contributing guide.
- Disable "X" datasource, since it is not working after the latest API
adjustments.
- Update "version" key and "msix_config.msix_version" key in
"pubspec.yaml" file.
- Change user in "AddSourceReddit" widget help text.
- Enable macOS App Sandbox.
- Adjust logo for Windows version.
