Drop install/packaging/fonts.sh, fix omarchy-setup-lock exit code

fonts.sh: obsolete. omarchy-settings installs omarchy.ttf to
/usr/share/fonts/omarchy/ system-wide and the fontconfig package's
post-install hook updates the cache, so copying it to ~/.local/share/
fonts and re-running fc-cache is redundant. The script was also failing
because omarchy-settings explicitly removes the source path
/usr/share/omarchy/config/omarchy.ttf during package install.

omarchy-setup-lock: the final line was 'omarchy-shell lock status
>/dev/null && echo "..."' which inherits the failed exit code when
omarchy-shell can't reach a running shell (always the case during chroot
install). set -e exempts cmd1 of && from triggering, but the script
still returns that non-zero as its own exit code, which the install
wrapper treated as a script failure. Wrap in an if/then so a failed
status check doesn't poison the script's exit code.

install/packaging/all.sh

@@ -1,4 +1,3 @@
-run_logged $OMARCHY_INSTALL/packaging/fonts.sh
 run_logged $OMARCHY_INSTALL/packaging/nvim.sh
 run_logged $OMARCHY_INSTALL/packaging/icons.sh
 run_logged $OMARCHY_INSTALL/packaging/webapps.sh