Add default servings to profile + choose servings when scheduling

backend/templates/profile.html

@@ -2,8 +2,7 @@
 
 {% block main_container %}
 
-{% match user %}
-{% when Some with (user) %}
+{% if let Some(user) = user %}
 
 <div class="content" id="user-edit">
     <h1>{{ tr.t(Sentence::ProfileTitle) }}</h1>
@@ -27,6 +26,14 @@
 
         {{ message_email }}
 
+        <label for="input-servings">{{ tr.t(Sentence::ProfileDefaultServings) }}</label>
+        <input
+            id="input-servings"
+            type="number"
+            step="1" min="1" max="100"
+            name="default_servings"
+            value="{{ default_servings }}"/>
+
         <label for="input-password-1">{{ tr.tp(Sentence::ProfileNewPassword, [Box::new(common::consts::MIN_PASSWORD_SIZE)]) }}</label>
         <input id="input-password-1" type="password" name="password_1" autocomplete="new-password" />
 
@@ -40,7 +47,6 @@
     {{ message }}
 </div>
 
-{% when None %}
-{% endmatch %}
+{% endif %}
 
 {% endblock %}