Fix role assignments by the TA to include Mentor

Also improved some text layout

Author: Celeo

Diff for: vzdv-site/src/endpoints/controller.rs

@@ -52,7 +52,7 @@ async fn roles_to_set(
     };
     let mut roles_to_set = Vec::new();
     let user_roles: Vec<_> = match &controller {
-        Some(c) => c.roles.split_terminator('\n').collect(),
+        Some(c) => c.roles.split_terminator(',').collect(),
         None => {
             return Ok(HashSet::new());
         }
@@ -61,6 +61,8 @@ async fn roles_to_set(
         roles_to_set.push(StaffPosition::AFE);
     } else if user_roles.contains(&"EC") {
         roles_to_set.push(StaffPosition::AEC);
+    } else if user_roles.contains(&"TA") {
+        roles_to_set.push(StaffPosition::MTR);
     } else if controller_can_see(&controller, PermissionsGroup::Admin) {
         roles_to_set.push(vzdv::StaffPosition::ATM);
         roles_to_set.push(vzdv::StaffPosition::DATM);

Diff for: vzdv-site/templates/changelog.jinja

@@ -20,6 +20,8 @@
     <div class="card-text">
       <ul>
         <li>Minor text improvement to solo certs page</li>
+        <li>Minor text improvement to controller page</li>
+        <li>Changed role assignments by the TA</li>
       </ul>
     </div>
   </div>

Diff for: vzdv-site/templates/controller/controller.jinja

@@ -273,8 +273,11 @@
 
 <dialog id="modalChangeRoles">
   <h2 class="pb-3">Edit roles</h2>
-  <p>These are roles <i>on this site</i> and do not change anything that VATUSA, etc. know about the controller.</p>
-  <p>Sr Staff roles will sync from VATUSA, which may overwrite whatever is set here.</p>
+  <p>
+    These are roles <i>on this site</i> and do not change anything that VATUSA, etc. know about the controller.
+    <br>
+    Sr Staff and Mentor roles will sync from VATUSA, which may overwrite whatever is set here.
+  </p>
   <form action="/controller/{{ controller.cid }}/roles" method="POST">
     {% for role in settable_roles %}
       <div class="row">