fixing source dir

meson.build

@@ -11,6 +11,6 @@ res = gnome.compile_resources(
 )
 
 deps = dependency(['gtkmm-4.0', 'sigc++-3.0'])
-src = ['Window.cpp', 'window.hpp', 'MineField.hpp', 'MineField.cpp', res]
+src = ['src/Window.cpp', 'src/window.hpp', 'src/MineField.hpp', 'src/MineField.cpp', res]
 exe = executable('minesweeper', src, dependencies : deps, install : true)