Add role="tooltip" to tooltips throughout the app

ui/app/templates/components/allocation-row.hbs

@@ -1,11 +1,11 @@
 <td data-test-indicators class="is-narrow">
   {{#if allocation.unhealthyDrivers.length}}
-    <span data-test-icon="unhealthy-driver" class="tooltip text-center" aria-label="Allocation depends on unhealthy drivers">
+    <span data-test-icon="unhealthy-driver" class="tooltip text-center" role="tooltip" aria-label="Allocation depends on unhealthy drivers">
       {{x-icon "warning" class="is-warning"}}
     </span>
   {{/if}}
   {{#if allocation.nextAllocation}}
-    <span data-test-icon="reschedule" class="tooltip text-center" aria-label="Allocation was rescheduled">
+    <span data-test-icon="reschedule" class="tooltip text-center" role="tooltip" aria-label="Allocation was rescheduled">
       {{x-icon "history" class="is-faded"}}
     </span>
   {{/if}}
@@ -47,11 +47,11 @@
   {{else if (not allocation)}}
     {{! nothing when there's no allocation}}
   {{else if statsError}}
-    <span class="tooltip text-center" aria-label="Couldn't collect stats">
+    <span class="tooltip text-center" role="tooltip" aria-label="Couldn't collect stats">
       {{x-icon "warning" class="is-warning"}}
     </span>
   {{else}}
-    <div class="inline-chart is-small tooltip" aria-label="{{cpu.used}} / {{stats.reservedCPU}} MHz">
+    <div class="inline-chart is-small tooltip" role="tooltip" aria-label="{{cpu.used}} / {{stats.reservedCPU}} MHz">
       <progress
         class="progress is-info is-small"
         value="{{cpu.percent}}"
@@ -67,11 +67,11 @@
   {{else if (not allocation)}}
     {{! nothing when there's no allocation}}
   {{else if statsError}}
-    <span class="tooltip is-small text-center" aria-label="Couldn't collect stats">
+    <span class="tooltip is-small text-center" role="tooltip" aria-label="Couldn't collect stats">
       {{x-icon "warning" class="is-warning"}}
     </span>
   {{else}}
-    <div class="inline-chart tooltip" aria-label="{{format-bytes memory.used}} / {{stats.reservedMemory}} MiB">
+    <div class="inline-chart tooltip" role="tooltip" aria-label="{{format-bytes memory.used}} / {{stats.reservedMemory}} MiB">
       <progress
         class="progress is-danger is-small"
         value="{{memory.percent}}"

ui/app/templates/components/client-node-row.hbs

@@ -1,6 +1,6 @@
 <td data-test-icon class="is-narrow">
   {{#if node.unhealthyDrivers.length}}
-    <span class="tooltip text-center" aria-label="Client has unhealthy drivers">
+    <span class="tooltip text-center" role="tooltip" aria-label="Client has unhealthy drivers">
       {{x-icon "warning" class="is-warning"}}
     </span>
   {{/if}}

ui/app/templates/components/freestyle/sg-progress-bar.hbs

@@ -1,5 +1,5 @@
 {{#freestyle-usage "progress-bar" title="Progress Bar"}}
-  <div class="inline-chart tooltip" aria-label="5 / 15">
+  <div class="inline-chart tooltip" role="tooltip" aria-label="5 / 15">
     <progress
       class="progress is-primary is-small"
       value="0.33"
@@ -12,7 +12,7 @@
 {{#freestyle-usage "progress-bar-colors" title="Progress Bar Colors"}}
   <div class="columns">
     <div class="column">
-      <div class="inline-chart tooltip" aria-label="5 / 15">
+      <div class="inline-chart tooltip" role="tooltip" aria-label="5 / 15">
         <progress
           class="progress is-info is-small"
           value="0.33"
@@ -22,7 +22,7 @@
       </div>
     </div>
     <div class="column">
-      <div class="inline-chart tooltip" aria-label="5 / 15">
+      <div class="inline-chart tooltip" role="tooltip" aria-label="5 / 15">
         <progress
           class="progress is-success is-small"
           value="0.33"
@@ -32,7 +32,7 @@
       </div>
     </div>
     <div class="column">
-      <div class="inline-chart tooltip" aria-label="5 / 15">
+      <div class="inline-chart tooltip" role="tooltip" aria-label="5 / 15">
         <progress
           class="progress is-warning is-small"
           value="0.33"
@@ -42,7 +42,7 @@
       </div>
     </div>
     <div class="column">
-      <div class="inline-chart tooltip" aria-label="5 / 15">
+      <div class="inline-chart tooltip" role="tooltip" aria-label="5 / 15">
         <progress
           class="progress is-danger is-small"
           value="0.33"
@@ -57,7 +57,7 @@
 {{#freestyle-usage "progress-bar-live" title="Progress Bar Live Updates"}}
   <div class="columns">
     <div class="column is-one-third">
-      <div class="inline-chart tooltip" aria-label="{{numerator}} / {{denominator}}">
+      <div class="inline-chart tooltip" role="tooltip" aria-label="{{numerator}} / {{denominator}}">
         <progress
           class="progress is-primary is-small"
           value="{{percentage}}"

ui/app/templates/components/task-row.hbs

@@ -43,11 +43,11 @@
   {{else if (not task)}}
     {{! nothing when there's no task}}
   {{else if statsError}}
-    <span class="tooltip text-center" aria-label="Couldn't collect stats">
+    <span class="tooltip text-center" role="tooltip" aria-label="Couldn't collect stats">
       {{x-icon "warning" class="is-warning"}}
     </span>
   {{else}}
-    <div class="inline-chart is-small tooltip" aria-label="{{cpu.used}} / {{taskStats.reservedCPU}} MHz">
+    <div class="inline-chart is-small tooltip" role="tooltip" aria-label="{{cpu.used}} / {{taskStats.reservedCPU}} MHz">
       <progress
         class="progress is-info is-small"
         value="{{cpu.percent}}"
@@ -63,11 +63,11 @@
   {{else if (not task)}}
     {{! nothing when there's no task}}
   {{else if statsError}}
-    <span class="tooltip is-small text-center" aria-label="Couldn't collect stats">
+    <span class="tooltip is-small text-center" role="tooltip" aria-label="Couldn't collect stats">
       {{x-icon "warning" class="is-warning"}}
     </span>
   {{else}}
-    <div class="inline-chart tooltip" aria-label="{{format-bytes memory.used}} / {{taskStats.reservedMemory}} MiB">
+    <div class="inline-chart tooltip" role="tooltip" aria-label="{{format-bytes memory.used}} / {{taskStats.reservedMemory}} MiB">
       <progress
         class="progress is-danger is-small"
         value="{{memory.percent}}"