Base: Some cleanups by moving /res folders to /usr/share and removing some useless config files

Userland/Games/MasterWord/WordGame.cpp

@@ -175,7 +175,7 @@ void WordGame::read_words()
     m_words.clear();
 
     auto try_load_words = [&]() -> ErrorOr<void> {
-        auto response = TRY(Core::File::open("/res/words.txt"sv, Core::File::OpenMode::Read));
+        auto response = TRY(Core::File::open("/usr/share/MasterWord/words.txt"sv, Core::File::OpenMode::Read));
         auto words_file = TRY(Core::InputBufferedFile::create(move(response)));
         Array<u8, 128> buffer;
 
@@ -189,7 +189,7 @@ void WordGame::read_words()
     };
 
     if (try_load_words().is_error()) {
-        GUI::MessageBox::show(nullptr, "Could not read /res/words.txt.\nPlease ensure this file exists and restart MasterWord."sv, "MasterWord"sv);
+        GUI::MessageBox::show(nullptr, "Could not read /usr/share/MasterWord/words.txt.\nPlease ensure this file exists and restart MasterWord."sv, "MasterWord"sv);
         exit(0);
     }
 }

Userland/Games/MasterWord/main.cpp

@@ -36,6 +36,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
 
     TRY(Core::System::unveil("/tmp/session/%sid/portal/launch", "rw"));
     TRY(Core::System::unveil("/res", "r"));
+    TRY(Core::System::unveil("/usr/share/MasterWord", "r"));
     TRY(Core::System::unveil(nullptr, nullptr));
 
     auto app_icon = TRY(GUI::Icon::try_create_default_icon("app-masterword"sv));