add sorting for gallery

pdb-js/src/app/visualization-page/visualization-page.component.html

@@ -4,7 +4,7 @@
   </div>
   
   <div id="date-box">
-    <mat-form-field class="mat-field-full-width">
+    <mat-form-field>
         <mat-label>Date Range:</mat-label>
         <input matInput id="search-date-range" value="dateRange" name="dates" (input)="changeDate($event)"  />
         <input type="hidden" id="hidden-search-date-range" [(ngModel)]="hiddenSearchDateRange" />
@@ -15,7 +15,7 @@
     <div id="filterpanel">
       
 
-      <mat-form-field class="mat-field-full-width">
+      <mat-form-field>
         <mat-label>Type:</mat-label>
         <mat-select [formControl]="selectedPlotType">
           <mat-option *ngFor="let plotType of plotTypes" [value]="plotType">
@@ -88,6 +88,7 @@
       </div>
     </div>
   </div>
+  
   <div id="results">
     <pdb-plot-view
       #plotView