Correct tag for new kde_ok needle

It had krusader_settings_close as its tag, not kde_ok. That's
why the krusader test module was failing weirdly.

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

needles/kde/apps/kde_ok-20200928.json

@@ -1,7 +1,7 @@
 {
   "properties": [],
   "tags": [
-    "krusader_settings_close"
+    "kde_ok"
   ],
   "area": [
     {
@@ -12,4 +12,4 @@
       "type": "match"
     }
   ]
-}
+}