Cleanup: Rename window-footer to app-footer

Follow the naming used in other places like app-version or #app.

web/app/src/assets/base.css

@@ -246,10 +246,11 @@ dl dd:empty {
   cursor: default;
 }
 
-.window-footer {
+.app-footer {
   align-items: center;
   background-color: var(--color-background-column);
   color: var(--color-text-muted);
+  cursor: pointer;
   display: flex;
   font-size: var(--font-size-sm);
   grid-area: footer;
@@ -478,10 +479,6 @@ select {
   font-weight: bold;
 }
 
-footer.window-footer {
-  cursor: pointer;
-}
-
 span.state-transition-arrow {
   display: inline-block;
   font-weight: bold;

web/app/src/views/JobsView.vue

@@ -10,7 +10,9 @@
     <task-details :taskData="tasks.activeTask" />
   </div>
 
-  <footer class="window-footer" v-if="!showFooterPopup" @click="showFooterPopup = true"><notification-bar /></footer>
+  <footer class="app-footer" v-if="!showFooterPopup" @click="showFooterPopup = true">
+    <notification-bar />
+  </footer>
   <footer-popup v-if="showFooterPopup" ref="footerPopup" @clickClose="showFooterPopup = false" />
 
   <update-listener ref="updateListener"  mainSubscription="allJobs"

web/app/src/views/LastRenderedView.vue

@@ -6,7 +6,7 @@
         thumbnailSuffix="last-rendered.jpg" />
   </div>
 
-  <footer class="window-footer"><notification-bar /></footer>
+  <footer class="app-footer"><notification-bar /></footer>
 
   <update-listener ref="updateListener" mainSubscription="allLastRendered"
     @lastRenderedUpdate="onSioLastRenderedUpdate"

web/app/src/views/WorkersView.vue

@@ -5,7 +5,7 @@
   <div class="col col-workers-details">
     <worker-details :workerData="workers.activeWorker" />
   </div>
-  <footer class="window-footer">
+  <footer class="app-footer">
     <notification-bar />
     <update-listener ref="updateListener" mainSubscription="allWorkers"
       @workerUpdate="onSIOWorkerUpdate"