fix database case sensitivity problems

database.js

@@ -18,6 +18,7 @@ const User = seqConn.define('User', {
         type: Sequelize.TEXT,
         unique: true,
         allowNull: false,
+        collate: 'NOCASE',
     },
     password: {
         type: Sequelize.TEXT,
@@ -48,7 +49,10 @@ const RegisteredDomain = seqConn.define('RegisteredDomain', {
     indexes: [
         {
             unique: true,
-            fields: ['domain', 'tld'],
+            fields: [
+                { name: 'domain', collate: 'NOCASE' },
+                { name: 'tld', collate: 'NOCASE' }
+            ],
         },
     ],
 });