[PM-13818] Allow user to edit self-hosted url during registration (#11790)

* Trigger self hosted settings dialog on select close

* Simplify triggering self hosted env config dialog

* Always emit selected value

* Update variable naming of lastSelectedValue to userSelectedValue to better reflect purpose

* Add comment for userSelectedValue variable

* Remove userSelectedValue and simply emit a closed event

* Remove passing selectedRegion in closed event

libs/components/src/select/select.component.html

@@ -7,6 +7,7 @@
   (blur)="onBlur()"
   [labelForId]="labelForId"
   [clearable]="false"
+  (close)="onClose()"
   appendTo="body"
 >
   <ng-template ng-option-tmp let-item="item">