change default charset to utf8mb4

closes #8

Author: scriptPilot

src/templates/schema.sql

@@ -2,10 +2,10 @@ CREATE TABLE IF NOT EXISTS `users` (
   `id` INTEGER(4) NOT NULL PRIMARY KEY AUTO_INCREMENT,
   `username` VARCHAR(255) NOT NULL,
   `password` VARCHAR(255) NOT NULL
-);
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci;
 
 CREATE TABLE IF NOT EXISTS `tasks` (
   `id` INTEGER(4) NOT NULL PRIMARY KEY AUTO_INCREMENT,
   `title` VARCHAR(255) NOT NULL,
   `done` TINYINT(1) NOT NULL DEFAULT 0
-);
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci;