Add owe-lockfeed, the lock screen video module

The lock screen draws video through Owe.LockFeed in omarchy#12429. The
module maps the frame slots the OWE renderer publishes, with no media
pipeline of its own. It builds from the qml-plugin directory of the owe
release and installs to the Qt QML module path.

pkgbuilds/owe-lockfeed/.omarchy/package.json

@@ -0,0 +1,10 @@
+{
+  "source": "local",
+  "release_ring": "fast",
+  "upstream": {
+    "watch": {
+      "github": "omacom/owe",
+      "pattern": "v(?P<version>[0-9]+(?:\\.[0-9]+)*)"
+    }
+  }
+}