The app name becomes a filename, and omarchy-webapp-install ran
`mkdir -p "$(dirname "$DESKTOP_FILE")"` over it, so every slash turned into a
directory level. Typing a URL into the Name field -- the reported way in --
wrote the launcher to
`~/.local/share/applications/http:/127.0.0.1:4000/.desktop`.
Removal could then never reach it. The picker lists the file but displays a
name derived from the path, and the removal rebuilt a flat
`$DESKTOP_DIR/$APP_NAME.desktop` from that name, so `rm -f` deleted nothing and
the app stayed in the launcher with no error.
Refuse a name containing a slash rather than silently renaming what the user
typed, and delete the file the scan actually found instead of a path rebuilt
from its display name. The second half also clears up whatever earlier versions
nested, which a reconstructed path cannot address.
Taksh
7c896d3521