flatpak: update files following names change + Python 3 update: - `build_manifest.py` has been fixed to work with recent SàT/Libervia - filenames/scripts have been udpated to reflect project name change - installation now uses `requirements.txt` when dev version is requested - there are now 3 types of commands wrapper: * `libervia_wrapper.py` uses `pb` bridge, starts backend before frontend, and stops it when frontend is stopped. It's used by `Libervia Desktop` (Cagou) * `libervia_wrapper-dbus.py` uses `dbus` bridge, starts backend before frontend, and stops it when frontend is stopped. It's used for `Libervia TUI` (Primitivus) * `libervia_wrapper-dbus.py` uses `dbus` bridge, starts backend if necessary and doesn't stop it (to avoid waiting for backend start next time). It's used by `Libervia CLI` (jp).

# Font Squirrel Font-face Generator Configuration File
# Upload this file to the generator to recreate the settings
# you used to create these fonts.

{"mode":"easy","formats":["ttf","eot","woff","svg"],"options_hinting":"Y","options_vertical_metrics":"Y","options_kerning":"Y","options_subset":"basic","subset_custom":"","subset_custom_range":"","css_format":"fontspring","filename_suffix":"webfont","emsquare":"2048","spacing_adjustment":"0"}