apps_run_terminal: match window area too

Just matching the Overview entry isn't really enough, the app
hasn't really run yet. This makes the test more robust and also
helps out on aarch64 desktop tests where the app window takes a
long time to appear.

Signed-off-by: Adam Williamson <awilliam@redhat.com>

needles/gnome/apps/apps_run_terminal-20200605.json

@@ -1,11 +1,18 @@
 {
     "area": [
         {
-      "type": "match",
             "height": 22,
-      "ypos": 4,
+            "type": "match",
             "width": 83,
-      "xpos": 129
+            "xpos": 129,
+            "ypos": 4
+        },
+        {
+            "height": 20,
+            "type": "match",
+            "width": 25,
+            "xpos": 195,
+            "ypos": 125
         }
     ],
     "properties": [],