app/matrix: matrix.hackerspace.pl: add libera.chat static mappings

Change-Id: Ib9052c14ab9c91ed2d11fce40bccf214d08df340
diff --git a/app/matrix/matrix.hackerspace.pl.jsonnet b/app/matrix/matrix.hackerspace.pl.jsonnet
index 7c022d4..9654c53 100644
--- a/app/matrix/matrix.hackerspace.pl.jsonnet
+++ b/app/matrix/matrix.hackerspace.pl.jsonnet
@@ -56,15 +56,15 @@
                         servers+: {
                             local servers = self,
                             "irc.freenode.net"+: {
-                                mappings+: import "secrets/plain/appservice-irc-freenode-mappings.jsonnet",
+                                mappings+: {},
                                 ircClients+: {
                                     maxClients: 150,
                                 },
                             },
                             "irc.libera.chat": servers["irc.freenode.net"] {
-                                mappings: {},
+                                mappings+: import "secrets/plain/appservice-irc-libera-mappings.jsonnet",
                                 ircClients+: {
-                                    maxClients: 20,
+                                    maxClients: 150,
                                 },
                                 name: "Libera Chat",
                                 networkId: "libera",