gnome: auto change input focus to chat entry

When opening the chat view, automatically change the
input focus to the chat entry.

Refs #76101

Change-Id: Iba31701a5241e638c2e8b115393de8feb3adbc9a
diff --git a/src/currentcallview.cpp b/src/currentcallview.cpp
index 8b6e6dd..e37d3ad 100644
--- a/src/currentcallview.cpp
+++ b/src/currentcallview.cpp
@@ -126,6 +126,8 @@
     if (gtk_toggle_button_get_active(togglebutton)) {
         /* create an outgoing media to bring up chat history, if any */
         priv->call->addOutgoingMedia<Media::Text>();
+        /* change focus to the chat entry */
+        gtk_widget_grab_focus(priv->entry_chat_input);
     }
 }