Add currently failing build for frontend

Signed-off-by: Ikey Doherty <ikey@solus-project.com>

src/frontend/meson.build

@@ -1,3 +1,17 @@
 if get_option('with-frontend') == true
     dep_gtk3 = dependency('gtk+-3.0', version: '>= 3.4.0')
+
+    frontend_sources = [
+        'main.c',
+    ]
+
+    frontend = executable(
+        'lsi-settings',
+        sources: frontend_sources + nica_sources,
+        include_directories: nica_includes,
+        dependencies: [
+            dep_gtk3,
+        ],
+        install: true,
+    )
 endif