Save and Finish blocking modal dialog Refactor and Styles #2500 (#2501)

* Save and Finish blocking modal dialog Refactor and Styles #2500

* created new template for ProgressDialogComponent

* Tweaks for #2501

- Normalized dialog icon size;
- Enhanced text formatting in dialog;
- Changed "Saving..." to remove ellipsis;

platform/commonUI/edit/src/actions/SaveInProgressDialog.js

@@ -6,7 +6,7 @@ define([], function () {
 
     SaveInProgressDialog.prototype.show = function () {
         this.dialog = this.dialogService.showBlockingMessage({
-            title: "Saving...",
+            title: "Saving",
             hint: "Do not navigate away from this page or close this browser tab while this message is displayed.",
             unknownProgress: true,
             severity: "info",