Description field is now optional as not all channels will need one

server/migrations/2020-03-11-005217_channels/up.sql

@@ -1,7 +1,7 @@
 CREATE TABLE IF NOT EXISTS `channels` (
     `id` INTEGER NOT NULL auto_increment,
     `name` VARCHAR(255) NOT NULL,
-    `description` VARCHAR(1024) NOT NULL,
     `kind` INTEGER NOT NULL,
+    `description` VARCHAR(1024),
     PRIMARY KEY(`id`)
 );