add component for a custom date picker that also knows relative date ranges like 'last month'

pdb-js/src/styles.scss

@@ -182,6 +182,9 @@ a.external-link:after {
 mat-form-field.pdb-form-full-width {
   width: 100%;
 }
+mat-form-field.pdb-form-number-small {
+  width: 4.5em;
+}
 mat-form-field.pdb-form-number {
   width: 5.5em;
 }