app/matrix: enable labs settings on matrix.hackerspace.pl

This adds an extra tab in profile settings window.

Change-Id: I2a6f162975b7ef6047aea5fdc72ba711084db2d5
diff --git a/app/matrix/matrix.hackerspace.pl.jsonnet b/app/matrix/matrix.hackerspace.pl.jsonnet
index 7e6deea..8ca94f4 100644
--- a/app/matrix/matrix.hackerspace.pl.jsonnet
+++ b/app/matrix/matrix.hackerspace.pl.jsonnet
@@ -22,6 +22,12 @@
         },
     },
 
+    riot+: {
+        config+: {
+            showLabsSettings: true,
+        },
+    },
+
     appservices: {
         "irc-freenode": irc.AppServiceIrc("freenode") {
             cfg+: {