Additional tweaks for bootstrap5 support

btn-default -> btn-secondary
use mb-3 to add margin to bottom of input-groups
use $.modal('show') to show modals
use bi bi-trash icon (font-awesome doesn't seem to be included with bs5
data-bs-dismiss on the modal close buttons
put recheck templates in container divs
add input-group-text class to addon icons for input fields

mfa/templates/MFA.html

@@ -20,6 +20,7 @@
         $("#actionBtn").remove()
         $("#modal-footer").prepend("<button id='actionBtn' class='btn btn-danger' onclick='confirmDel("+id+")'>Confirm Deletion</button>")
         $("#popUpModal").modal()
+        $("#popUpModal").modal('show')
     }
 
     function toggleKey(id) {
@@ -98,7 +99,7 @@
                <td>{% if key.key_type in HIDE_DISABLE %}
                    ----
                    {% else %}
-                    <a href="javascript:void(0)" onclick="deleteKey({{ key.id }},'{{ key.key_type }}')"> <span class="fa fa-trash fa-solid fa-trash-can"></span></a></td>
+                    <a href="javascript:void(0)" onclick="deleteKey({{ key.id }},'{{ key.key_type }}')"> <span class="fa fa-trash fa-solid fa-trash-can bi bi-trash-fill"></span></a></td>
                     {% endif %}
            </tr>
        {% empty %}