LIMS-1406: Dont allow the location to be changed during a dispatch request (#888)

Co-authored-by: Mark Williams <mark.williams@diamond.ac.uk>

Author: ndg63276

client/src/js/templates/shipment/dispatch.html

@@ -104,7 +104,7 @@ <h1 data-testid="dispatch-header">Request Dewar Dispatch</h1>
                 <label>Dewar Location
                     <span class="small">Where the dewar currently is</span>
                 </label>
-                <input type="text" name="LOCATION" data-testid="dispatch-location"/>
+                <input type="text" name="LOCATION" data-testid="dispatch-location" disabled="disabled"/>
             </li>