Display app improvements

- Add summary page
- Use common time range component

Display/src/app/components/power/charts/power-charts.component.scss

@@ -1,27 +1,19 @@
-.chart-content {
+#refresh {
+    height: 36px;
+    top: 13px;
+}
+
+.content {
     display: flex;
     flex-flow: column;
     height: 100%;
-  }
+}
 
-  #chart {
-    flex: 1 1 auto;
-  }
-
-  .chart-header {
-    background-color: rgb(250, 250, 250);
+.header {
+    display: flex;
     padding: 0 20px;
-    flex: 0 0 auto;
-  }
+}
 
-  .chart-button-spacer {
-    margin-right: 20px;
-  }
-
-  .selected:after {
-    content: "";
-    display: block;
-    margin: 0 auto;
-    width: 100%;
-    border-bottom: 1px solid #673ab7;
-  }
+#chart {
+    flex: 1 1 auto;
+}