[FIX] BG color classes

Use `text-bg-*` instead of just `bg-*` to make use of Bootstraps native text color selection for those backgrounds.

allianceauth/authentication/templates/authentication/tokens.html

@@ -31,7 +31,7 @@
                     <tr>
                         <td style="white-space:initial;">
                             {% for s in t.scopes.all %}
-                                <span class="badge bg-secondary">{{ s.name }}</span>
+                                <span class="badge text-bg-secondary">{{ s.name }}</span>
                             {% endfor %}
                         </td>