Import keyboard navigation

* Aggressively set focus to message input box and fix #37
* Improve room switching #66

imports/NeoChat/Page/RoomPage.qml

@@ -49,6 +49,11 @@ Kirigami.ScrollablePage {
             switchRoomDown();
         } else if (event.key === Qt.Key_PageUp) {
             switchRoomUp();
+        } else if (!(event.modifiers & Qt.ControlModifier)) {
+            event.accepted = true;
+            chatTextInput.addText(event.text);
+            chatTextInput.focus();
+            return;
         }
     }