GTK has deprecated the AppChooser interface and related widgets.
These APIs will be gone in GTK5, so we should move away from
them as soon as possible.
This MR takes the opportunity to change the design to match newer
mockups while dropping deprecated APIs.
This avoids coggling the UI for those devices for which a modem
is not present, as x-scheme-handler/tel and x-scheme-hanlder/sms
are of no use in such cases
cc-default-apps-panel.c:101 uses g_pattern_match_string, which is now
considered deprecated in Glib. It is better to use the 2.70+
g_pattern_spec_match_string, which works as a drop-in replacement. This
helps with function organization, as the original was created as a
general Glib function while g_pattern_spec_match_string works under the
PatternSpec module.
This patch swaps the usage to the newer function, creating no functional
difference and resolving a deprecated functions warning.
