refactor(templates): the last inline styles that Bootstrap covers

- The VM list's power forms (style="display:inline") are d-inline.
- The fields scripts show and hide are d-none, and the scripts add and
  remove that class instead of calling jQuery's show() and hide(),
  which could not undo it: the custom memory boxes of the Resize tab,
  the ISO upload's error message and the clone dialog's metadata row.
- The please-wait dialog's full bar is w-100.
- The create-VM pages' own 56rem width (.create-vm) goes: pages stop
  at 960px now, about the same.
- static/css/font-awesome.min.css goes: no page loaded it, no element
  used its classes and its fonts were never in the repository.

templates/pleasewaitdialog.html

@@ -8,7 +8,7 @@
                 </div>
                 <div class="modal-body">
                     <div class="progress">
-                        <div class="progress-bar progress-bar-striped progress-bar-animated" role="progressbar" aria-label="{% trans "Processing" %}" aria-valuenow="100" aria-valuemin="0" aria-valuemax="100" style="width:100%">
+                        <div class="progress-bar progress-bar-striped progress-bar-animated w-100" role="progressbar" aria-label="{% trans "Processing" %}" aria-valuenow="100" aria-valuemin="0" aria-valuemax="100">
                         </div>
                     </div>
                 </div>