The reuse linter only supports single files inside the LICENSE folder.
As the HTML version for the license is only required for the installer,
this commit moves it to the installer folder.
Nowadays most of the loadbalancing is done on the server-side and hence
there is only a single datafile URL (and other URLs) inside the
boostrap.json.
The features of the CUrlList are hence not really used. This is also a
step into removing CUrl and using QUrl instead, to avoid maintaining a
separate URL class.
The watchdog was used in a few places as a shortcut to skip reading
data. Further, it was used in some places in the UI to display
connectivity. But it also introduced quite some complexity. In some
cases it can be fragile: network accessibilty cannot be looked up on all
platforms/hardware constellations. The connectivity could change
between the last watchdog call and the real call. Hence all readers must
still handle the case where the connection fails.
To simplify swift and further reduce the dependency onto the project
infrastructure (pings etc.), this removes the watchdog.
This also removes the QNetworkConfigurationManager, which is deprecated
and not available with Qt6.
Previously we already switch to loading the bootstrap file only from the
local file (ec42553910).
This removes the remaining parts of loading the bootstrap file from a
remote location.
This also updates the UI in case of parsing errors of the bootstrap.json.
With this, the database debug flag can only be activated when using swift
with a development build. Setting the development flag in the json also
didn't worked previously as expected because the corresponding function
to get the flag in application.cpp was called before the setup was loaded.
