Add icons to settings headers

index.html

@@ -22,7 +22,7 @@ file, You can obtain one at http://mozilla.org/MPL/2.0/.
             <div class="modal-body">
                 <div class="row">
                     <div class="col-12 col-lg-6">
-                        <h4>Notary Profile</h4>
+                        <h4><i class="fas fa-address-card"></i> Notary Profile</h4>
                         Name: <input class="form-control" type="text" id="notary_name" />
                         Location (county/residing at): <input class="form-control" type="text" id="notary_location" />
                         Commission expiration: <input class="form-control" type="text" id="notary_expires" />
@@ -40,7 +40,7 @@ file, You can obtain one at http://mozilla.org/MPL/2.0/.
                         <div class="btn btn-primary m-1" onclick="activateNotarySignaturePad()"><i class="fas fa-signature"></i> Draw Signature</div>
                     </div>
                     <div class="col-12 col-lg-6">
-                        <h4>Digital Signature</h4>
+                        <h4><i class="fas fa-user-lock"></i> Digital Signature</h4>
                         <p>
                             <b>MUST READ:</b> When you save a PDF with this tool, a cryptographic signature is attached.
                             This signature can be used to prove the PDF is unchanged since notarization,