fix: Fixes undefined variable $ENABLE_JAAS_COMPONENTS. Fixes #1377.

web/rootfs/defaults/meet.conf

@@ -1,4 +1,5 @@
 {{ $ENABLE_COLIBRI_WEBSOCKET := .Env.ENABLE_COLIBRI_WEBSOCKET | default "1" | toBool }}
+{{ $ENABLE_JAAS_COMPONENTS := .Env.ENABLE_JAAS_COMPONENTS | default "0" | toBool }}
 {{ $ENABLE_XMPP_WEBSOCKET := .Env.ENABLE_XMPP_WEBSOCKET | default "1" | toBool }}
 {{ $ENABLE_SUBDOMAINS := .Env.ENABLE_SUBDOMAINS | default "true" | toBool -}}
 {{ $XMPP_DOMAIN := .Env.XMPP_DOMAIN | default "meet.jitsi" -}}