BS v5 buttons, panels, icons update

BS v5 changed block buttons, panels -> cards, and icon classes.

mfa/templates/TrustedDevices/Add.html

@@ -31,11 +31,11 @@
 <div class="row">
 
 <div class="col-sm-10 col-sm-offset-1 col-xs-12 col-md-10 col-md-offset-1 col-lg-8 col-lg-offset-2">
-<div class="panel panel-default">
+<div class="panel panel-default card">
-      <div class="panel-heading">
+      <div class="panel-heading card-header">
 	      <strong> Add Trusted Device</strong>
       </div>
-      <div class="panel-body">
+      <div class="panel-body card-body">
         {%  if success %}
             <div class="alert alert-warning">
                 Please check your PC window, to continue the process.
@@ -69,7 +69,7 @@
 	    <div class="form-group">
 	      <div class="input-group">
 		<span class="input-group-addon">
-		<i class="glyphicon glyphicon-user"></i>
+		<i class="glyphicon glyphicon-user bi bi-person"></i>
 		</span>
 		<input class="form-control" id="username" size="30" MaxLength="30" placeholder="Username" name="username" value="{{ username }}" type="text" autofocus autocomplete="on">
 
@@ -104,7 +104,7 @@
 	      </div>
 	      </div>
 	      {% endcomment %}
-	      <div class="form-group">
+	      <div class="form-group d-grid gap-2">
 	      <input type="submit" class="btn btn-lg btn-success btn-block" value="Trust Device">
 	      </div>
 	      </div>
@@ -113,7 +113,7 @@
 	      </form>
       {% endif %}
 	      </div>
-	      <div class="panel-footer ">
+	      <div class="panel-footer card-footer">
 
 
 	      </div>