Tweak kwrite_lines_numbers to use lines 2 and 3

I saw a case where line 1 had a cursor visible so the match
failed. Instead of having two needles for cursor / no cursor,
let's just match on lines 2 and 3 instead so it's not a problem.

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

needles/kde/apps/kwrite/kwrite_lines_numbered.json

@@ -2,10 +2,10 @@
   "area": [
     {
       "xpos": 3,
-      "ypos": 106,
-      "width": 78,
+      "ypos": 124,
       "height": 34,
-      "type": "match"
+      "type": "match",
+      "width": 78
     }
   ],
   "properties": [],