Add modal progress box for stage recentering

I've also added a title to the modal box

webapp/src/components/genericComponents/taskSubmitter.vue

@@ -35,8 +35,9 @@
       </button>
     </div>
 
-    <div id="modal-center" ref="statusModal" class="" uk-modal>
+    <div id="modal-center" ref="statusModal" class="" uk-modal="bg-close: false; esc-close: false; stack: true;">
       <div class="uk-modal-dialog uk-modal-body uk-margin-auto-vertical">
+        <h2>{{ submitLabel }}</h2>
         <div id="log-container" ref="logContainer">
           <div v-for="(item, index) in log" :key="`log_entry_${index}`">
             {{ item.message }}

webapp/src/components/tabContentComponents/navigateComponents/paneNavigate.vue

@@ -78,8 +78,9 @@
             <taskSubmitter
               :submit-url="recentreActionUri"
               :submit-label="'Re-centre Stage'"
-              :can-terminate="false"
+              :can-terminate="true"
               :requires-confirmation="true"
+              :modal-progress="true"
               :confirmation-message="
                 'The stage will now move, and autofocus will be used to find the centre of motion. This requires a sample to be visible in the microscope. OK to proceed?'
               "