Add a Provides for xdg-desktop-portal-backend (LP: #2036098).

debian/changelog

@@ -1,3 +1,9 @@
+xdg-desktop-portal-lxqt (0.4.0-0ubuntu2) mantic; urgency=medium
+
+  * Add a Provides for xdg-desktop-portal-backend (LP: #2036098).
+
+ -- Simon Quigley <tsimonq2@ubuntu.com>  Fri, 22 Sep 2023 11:51:42 -0500
+
 xdg-desktop-portal-lxqt (0.4.0-0ubuntu1) mantic; urgency=medium
 
   * New upstream release.

debian/control

@@ -24,6 +24,7 @@ Depends: libfm-qt-dev (>= 1.3.0),
          ${misc:Depends},
          ${shlibs:Depends}
 Pre-Depends: ${misc:Pre-Depends}
+Provides: xdg-desktop-portal-backend
 Description: xdg-desktop-portal using Qt/KF5/libfm-qt
  LXQt is an advanced, easy-to-use, and fast desktop environment based on Qt
  technologies. It has been tailored for users who value simplicity, speed, and