python3 is now more likely to be found instead of python, although
macos doesn't ship python pre-installed, we should try to remove
python dependency from the installers

without this the new bitmask-vpn connection/disconnect icons
width becomes larger and overflows beyond the parent container

this currently points to the demo instance of lillypad
going forward this'll be the flavor of the desktop app
that leap team is going to maintain and test

updates the Priority in control file and updates
the License in copyright file

- this updates the .desktop template file to support multiple
provider icons
- adds a .png instead of the .svg icon file and adds it to sources/include-binaries

this fixes #744

instead of using the helper to launch openvpn
we can use the upstream openvpn service which
is available in the official installer

for some reason the commit that introduced it
earlier was partially reverted, in my testing
it is working as expected

removing it seems to work better for now, otherwise
the location string overlaps on the lightning  icon

this sets the minimum go version in go.mod to 1.19 as that is
the version of golang currently available on debian stable

this updates all dependencies to the their latest version except
xtaci/kcp-go as the latest version needs go1.21, we use 5.5.15

update build.sh to search qmake6 instead of qmake5

for somereason values from Javascript are undefined from
the qml documents, setting the theme values directly  in
the qml document fixes the following error:

this comments out the ColorOverlay property from
various types

fix an error about udefined variable on BoldLabel.qml

this path is used for storing the git-archive  output
of this repo

the relative path works across platforms and provides
working path for both powershell and cygwin based git
whereas `pwd` output differs in powershell vs cygwin

on linux Qt Installer Framework is not used for packagin
so this check in the makefile can be skipped for linux

as Qt6 recommends using CMake as the build system
this commit adds initial CMakeLists.txt file which
is generated from qmake2cmake python tool

this doesn't yet generate a working bitmask-vpn binary
issues that remains to be solved are:
- resource files are not properly getting embedded in the binary

remove version from QtQuick and QtQuick.Dialogs

update translations

See merge request !168

Update transifex api

See merge request !167

Add "un/install dev target for linux" to Makefile

See merge request !169

`bitmask-root` needs to be in in the path (/usr/local/bin did not work). Maybe I overlook something here, but this seems required to get the dev environment up and running.
This is currently how I run/debug things:

```
make vendor (required only once)
make build && make install_dev_linux && DEBUG=1 LEAP_DRYRUN=1 build/qt/release/riseup-vpn --no-systray
```

transifex dropped support for their v2 API. Instead of using the
makefile to fetch new translations, you can now use their cli tool.

reverting a recent change that breaks `generate` step in build.

-Closes: #727