Enable leave space entry point.

features/space/impl/src/main/kotlin/io/element/android/features/space/impl/root/SpaceView.kt

@@ -202,7 +202,7 @@ private fun LoadingMoreIndicator(
 private fun SpaceViewTopBar(
     currentSpace: SpaceRoom?,
     onBackClick: () -> Unit,
-    @Suppress("unused") onLeaveSpaceClick: () -> Unit,
+    onLeaveSpaceClick: () -> Unit,
     onShareSpace: () -> Unit,
     modifier: Modifier = Modifier,
 ) {
@@ -247,8 +247,6 @@ private fun SpaceViewTopBar(
                         )
                     }
                 )
-                /*
-                // TODO re-enable when we have SDK APIs to leave a space
                 DropdownMenuItem(
                     onClick = {
                         showMenu = false
@@ -263,7 +261,6 @@ private fun SpaceViewTopBar(
                         )
                     }
                 )
-                 */
             }
         },
     )