Share score button + Restart test button

front/src/less/timeline.less

@@ -10,6 +10,9 @@
 @domInteractiveColor: #FFE433;
 @domInteractiveBg: #FFFCCC;
 
+.execution {
+    text-align: center;
+}
 
 .timeline {
     margin: 2em 0 5em;
@@ -130,9 +133,12 @@
 }
 
 .filters {
-    margin: 1em 0;
+    margin: 1em auto;
     padding: 0.5em;
+    min-width: 30em;
+    width: 30%;
     border: 1px dotted #aaa;
+    text-align: left;
 }
 
 .slowRequestsLimit {