Replace the single user (defined in /data/config.php) with a multi user management thing

migrations/0026.sql

@@ -0,0 +1,20 @@
+CREATE TABLE users (
+	id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT UNIQUE,
+	username TEXT NOT NULL UNIQUE,
+	first_name TEXT,
+	last_name TEXT,
+	password TEXT NOT NULL,
+	row_created_timestamp DATETIME DEFAULT (datetime('now', 'localtime'))
+);
+
+DROP TABLE sessions;
+
+CREATE TABLE sessions (
+	id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT UNIQUE,
+	session_key TEXT NOT NULL UNIQUE,
+	user_id INTEGER NOT NULL,
+	expires DATETIME,
+	last_used DATETIME,
+	row_created_timestamp DATETIME DEFAULT (datetime('now', 'localtime'))
+)
+