Configure remaining options for akkounts

And refactor attributes/variables to use the various service cookbook's
own attributes.

environments/production.json

@@ -2,14 +2,17 @@
   "name": "production",
   "override_attributes": {
     "akkounts": {
-      "discourse": {
-        "public_url": "https://community.kosmos.org"
+      "ejabberd": {
+        "admin_url": "https://xmpp.kosmos.org:5443/admin"
       },
       "lndhub": {
         "public_url": "https://lndhub.kosmos.org",
         "public_key": "024cd3be18617f39cf645851e3ba63f51fc13f0bb09e3bb25e6fd4de556486d946"
       }
     },
+    "discourse": {
+      "domain": "community.kosmos.org"
+    },
     "garage": {
       "replication_mode": "2",
       "s3_api_root_domain": ".s3.garage.kosmos.org",
@@ -20,6 +23,7 @@
       ]
     },
     "gitea": {
+      "domain": "gitea.kosmos.org",
       "postgresql_host": "pg.kosmos.local:5432",
       "config": {
         "storage": {
@@ -31,6 +35,7 @@
       }
     },
     "kosmos-mastodon": {
+      "domain": "kosmos.social",
       "s3_endpoint": "http://localhost:3900",
       "s3_region": "garage",
       "s3_bucket": "kosmos-social",
@@ -40,6 +45,9 @@
         "mastodon.w7nooprauv6yrnhzh2ajpcnj3doinked2aaztlwfyt6u6pva2qdxqhid.onion"
       ]
     },
+    "mediawiki": {
+      "url": "https://wiki.kosmos.org"
+    },
     "sentry": {
       "allowed_ips": "10.1.1.0/24"
     }