change state & city field names

Author: aeq-dev

database/migrations/2020_01_01_000001_create_addresses_table.php

@@ -22,9 +22,9 @@ public function up()
             $table->string('company')->nullable();
             $table->foreignId('country_id')->on('countries')->nullable();
             $table->foreignId('state_id')->on('states')->nullable();
-            $table->string('state')->nullable();
+            $table->string('state_name')->nullable();
             $table->foreignId('city_id')->on('cities')->nullable();
-            $table->string('city')->nullable();
+            $table->string('city_name')->nullable();
             $table->string('line1')->nullable();
             $table->string('line2')->nullable();
             $table->string('street')->nullable();