- the rawfs module uses more parts of the subprocess Python module
  and so needs more things mocked for testing.

The list suggests things are not-so-good because of recently-pushed
changes to the translations and teams haven't had time to react.
There are also some new duplicate languages.

FIXES #1682

- filter() returns the items for which the predicate is True;
  we want to keep the subvolumes that do not have an explicit
  partition already associated.
- need list() to hammer it back into a list for appending swap subvol.

In 942221c7 the fixed-setup
(with /@ and /@home) was replaced by the configurable btrfs
layout, but the default went away. Restore the two-subvolume
layout if nothing is configured.

Re-use the existing message about partition type and size,
since I don't want to introduce another message with all the
specifics; give a works-always message instead.

The check itself is also straightforward, avoiding all of the
nuances and technically-this-might-work cases: FAT32, 300MiB+.

FIXES #607

Merge branch 'development' of ssh://gitlab.manjaro.org:22277/applications/calamares into development

Allow user-selection of FS type

FIXES #1667

[usersq] use validator for login & hostname

empty text box on all good status in usersq is confusing

kirigami inlinemessages adjusted for password fields
coding style, break lines in variables
add closing button for root password inline message, needed bc of
re-use root password option does not remove all messages

root & localhost set as forbidden in loginname & hostname

pallette for colors
inline warning messages now work, password fields checks included
left to implement are password validation inline messages

bug introduced with Qt 5.15 KDE patches makes near impossible to set location
adding - 5 seems to fix, otherwise the coordinates label will have to be removed

- the defaultFileSystemType interacts with availableFileSystemTypes
  so set them together.

It's a bit over-wrought to store a bool in a QVariant in GS for
consumption **only** by ChoicePage, so drop that GS key and store
it locally.