db: Migrate to SQLite, improve performance

core/frontend/user/index.jinja

@@ -1,6 +1,6 @@
 {% extends "core/frontend/index.jinja" %}
 {% block content %}
-<h1>Management for {{ username }}</h1>
+<h1>Management for {{ username.decode("utf-8") }}</h1>
 <h2>Cards <button class="btn btn-success" data-bs-toggle="modal" data-bs-target="#card_add">Add</button></h2>
 <ul>
 {% for c in cards %}
@@ -18,7 +18,7 @@
         HOW TO:<br>
         Scan your card on any networked game and press the "View Access Code" button (varies by game) and enter the 20 digit code below.<br>
         !!FOR AMUSEIC CARDS: DO NOT ENTER THE CODE SHOWN ON THE BACK OF THE CARD ITSELF OR IT WILL NOT WORK!!
-        <p /><label for="card_add_frm_access_code">Access Code:&nbsp;</label><input id="card_add_frm_access_code" maxlength="20" type="text" required> 
+        <p /><label for="card_add_frm_access_code">Access Code:&nbsp;</label><input id="card_add_frm_access_code" maxlength="20" type="text" required>
       </div>
       <div class="modal-footer">
         <button type="button" class="btn btn-primary">Add</button>
@@ -28,4 +28,4 @@
   </div>
 </div>
 
-{% endblock content %}
+{% endblock content %}