meson: fix permissions of mconnect.desktop file

Signed-off-by: Maciek Borzecki <maciek.borzecki@gmail.com>

meson.build

@@ -121,9 +121,11 @@ conf.set('bindir',
 
 configure_file(output: 'mconnect.desktop',
                input: 'mconnect.desktop.in',
-               configuration: conf,
-               install_dir: applicationsdir,
-               install_mode: 'rw-r--r--')
+               configuration: conf)
+
+install_data(join_paths(meson.current_build_dir(), 'mconnect.desktop'),
+             install_dir: applicationsdir,
+             install_mode: 'rw-r--r--')
 
 mconnectdatadir = join_paths(get_option('datadir'),
                              'mconnect')