Add a desktop launcher for the OpenShell TUI so users can launch
"openshell term" from their desktop environment application menu.
The change adds three files:
- snap/local/term.desktop: desktop entry file for the application launcher
- snap/local/icon.png: application icon (copied from snap store data)
- snapcraft.yaml: new "term" app entry that runs "openshell term"
with home, network, ssh-keys, and system-observe plugs, plus install
rules to stage the desktop file and icon under meta/gui/
The desktop file references the icon via ${SNAP} which is resolved
at runtime to the snap installation directory. The term app reuses
the same connection plugs as the main openshell app.
Signed-off-by: Zygmunt Krynicki <zygmunt.krynicki@canonical.com>
Evan Lezar