Add a couple of needle variants for KDE login test

These seem to be needed as a consequence of the previous commit
changes to desktop_login, not sure why, maybe something to do
with no longer opening the kicker once before we start doing
power actions.

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

needles/kde/leave_button-fuzzy-20241009.json

@@ -0,0 +1,15 @@
+{
+  "area": [
+    {
+      "type": "match",
+      "xpos": 574,
+      "ypos": 674,
+      "height": 21,
+      "width": 19
+    }
+  ],
+  "properties": [],
+  "tags": [
+    "leave_button"
+  ]
+}

needles/kde/reboot_entry_kde-fuzzy-20241009.json

@@ -0,0 +1,15 @@
+{
+  "area": [
+    {
+      "width": 19,
+      "height": 20,
+      "xpos": 384,
+      "type": "match",
+      "ypos": 675
+    }
+  ],
+  "properties": [],
+  "tags": [
+    "reboot_entry"
+  ]
+}