cinera: Add :admin medium

cinera/cinera.c

@@ -14,7 +14,7 @@ typedef struct
 version CINERA_APP_VERSION = {
     .Major = 0,
     .Minor = 5,
-    .Patch = 0
+    .Patch = 1
 };
 
 #define CINERA_DB_VERSION 1
@@ -278,6 +278,7 @@ typedef struct
 category_medium CategoryMedium[] =
 {
     // medium        icon         written name
+    { "admin",       "🗹", "Administrivia"}, // TODO(matt): Filter this out by default
     { "afk",         "…"  , "Away from Keyboard"}, // TODO(matt): Filter this out by default
     { "authored",    "🗪", "Chat Comment"}, // TODO(matt): Conditionally handle Chat vs Guest Comments
     { "blackboard",  "🖌", "Blackboard"},