Since _ls is now deprecated this is removed in favour of L1, I've also taken the oportunity to replace QStringLiteral and QLatin1String with their shortened form while we're at it.
There are also a few instances where the string literal type has been switch, the general rule being to use the one that matches the function type or value being compared to avoid conversions.
Steal the look of itinerary items from itinerary but simplified. Also includes new support for flights and restaurants
This adds previews for downloaded pdfs and code files.
Move the itinerary model representation to it's own component and instantiate from MessageComponentModel. This starts to lay some groundwork for previewing other files.
After downloading a file, the model calls the extractor and uses the
JSON to show some basic information about the content and allows to import
the data to Itinerary. This is entirely runtime-optional; no build-time dependencies
are required and nothing changes if the extractor isn't available.
