Improve admin settings page

The improvements are mostly cosmetic^Wquestionable.

web/config.py

@@ -14,13 +14,20 @@ def index():
     try:
         if not flask_login.current_user.is_admin:
             return flask.Response('forbidden', status=403, mimetype='text/plain')
+
         with db.locked():
+            settings = db.read('settings')
+
             if flask.request.method == 'POST':
                 form = flask.request.form
-                db.write('settings', dict(zip(form.getlist('setting'), form.getlist('value'))))
+                for name, value in form.items():
+                    if name in settings:
+                        settings[name] = value
+                    db.write('settings', settings)
                 system.run(system.save_config)
-            settings = db.read('settings')
-        return flask.render_template('config/index.html', **locals())
+                return flask.redirect(flask.url_for('config.index'))
+
+            return flask.render_template('config/index.html', settings=settings)
     except TimeoutError:
         return flask.render_template('busy.html')
     except Exception as e:

web/templates/config/index.html

@@ -5,12 +5,14 @@
 Tu lahko urejate splošne nastavitve.
 
 <form id="request" method="POST">
-<h2>Nastavitve</h2>
+<table>
+<tbody>
 {% for name, value in settings.items() %}
-<p>
-<input type="hidden" name="setting" value="{{ name }}" />
-<label>{{ name }}<br><input name="value" value="{{ value }}" /></label>
+<tr>
+<td><label for="{{ name }}">{{ name }}</label>
+<td><input id="{{ name }}" name="{{ name }}" value="{{ value }}" size="40" />
 {% endfor %}
+</table>
 <p><button id="submit" type="submit">Shrani</button>
 </form>