fix modal, add env variables, etc

database/migrations/2023_03_27_081716_create_applications_table.php

@@ -39,8 +39,6 @@ return new class extends Migration
             $table->string('base_directory')->default('/');
             $table->string('publish_directory')->nullable();
 
-            $table->schemalessAttributes('environment_variables');
-
             $table->string('health_check_path')->default('/');
             $table->string('health_check_port')->nullable();
             $table->string('health_check_host')->default('localhost');