install: add enable prompt to filebrowser and gc menu when an install option is clicked whilst disabled.

sphaira/source/ui/menus/filebrowser.cpp

@@ -704,12 +704,7 @@ void FsView::InstallForwarder() {
 
 void FsView::InstallFiles() {
     if (!App::GetInstallEnable()) {
-        App::Push<ui::OptionBox>(
-            "Install disabled...\n"
-            "Please enable installing via the install options."_i18n,
-            "OK"_i18n
-        );
-
+        App::ShowEnableInstallPrompt();
         return;
     }
 

sphaira/source/ui/menus/gc_menu.cpp

@@ -376,11 +376,7 @@ Menu::Menu(u32 flags) : MenuBase{"GameCard"_i18n, flags} {
 
                 if (m_option_index == 0) {
                     if (!App::GetInstallEnable()) {
-                        App::Push<ui::OptionBox>(
-                            "Install disabled...\n"
-                            "Please enable installing via the install options."_i18n,
-                            "OK"_i18n
-                        );
+                        App::ShowEnableInstallPrompt();
                     } else {
                         log_write("[GC] doing install A\n");
                         App::Push<ui::ProgressBox>(m_icon, "Installing "_i18n, m_entries[m_entry_index].lang_entry.name, [this](auto pbox) -> Result {