make the ptext_prompt func can define which keyboard to enter (#2608)

* _

* format

* use define

firmware/application/external/lge/lge_app.cpp

@@ -311,6 +311,7 @@ LGEView::LGEView(NavigationView& nav) {
             nav,
             nickname,
             15,
+            ENTER_KEYBOARD_MODE_ALPHA,
             [this](std::string& buffer) {
                 button_text.set_text(buffer);
             });