Don't quick edit text when there is already text in the input field

Fix #354

imports/NeoChat/Component/ChatBox/ChatBar.qml

@@ -149,7 +149,7 @@ ToolBar {
                         chatBar.pasteImage();
                     } else if (event.key === Qt.Key_Up && event.modifiers & Qt.ControlModifier) {
                         replyPreviousUserMessage();
-                    } else if (event.key === Qt.Key_Up) {
+                    } else if (event.key === Qt.Key_Up && inputField.text.length === 0) {
                         editLastUserMessage();
                     }
                 }