optimize imports

issue: TOBAGO-1633: TS refactoring
diff --git a/tobago-theme/tobago-theme-standard/src/main/npm/ts/tobago-all.ts b/tobago-theme/tobago-theme-standard/src/main/npm/ts/tobago-all.ts
index 15bbffa..d62c216 100644
--- a/tobago-theme/tobago-theme-standard/src/main/npm/ts/tobago-all.ts
+++ b/tobago-theme/tobago-theme-standard/src/main/npm/ts/tobago-all.ts
@@ -45,4 +45,4 @@
 import "./tobago-tab";
 import "./tobago-tree";
 import "./tobago-tree-listbox";
-import "./tobago-utils";
+import "./tobago-utils";
\ No newline at end of file
diff --git a/tobago-theme/tobago-theme-standard/src/main/npm/ts/tobago-core.ts b/tobago-theme/tobago-theme-standard/src/main/npm/ts/tobago-core.ts
index 9940a22..f433326 100644
--- a/tobago-theme/tobago-theme-standard/src/main/npm/ts/tobago-core.ts
+++ b/tobago-theme/tobago-theme-standard/src/main/npm/ts/tobago-core.ts
@@ -17,7 +17,6 @@
 
 import {Listener} from "./tobago-listener";
 import {Overlay} from "./tobago-overlay";
-import {DomUtils} from "./tobago-utils";
 import {CommandHelper} from "./tobago-command";
 import {Page} from "./tobago-page";
 
diff --git a/tobago-theme/tobago-theme-standard/src/main/npm/ts/tobago-jsf.ts b/tobago-theme/tobago-theme-standard/src/main/npm/ts/tobago-jsf.ts
index 75ca34d..fc3ecad 100644
--- a/tobago-theme/tobago-theme-standard/src/main/npm/ts/tobago-jsf.ts
+++ b/tobago-theme/tobago-theme-standard/src/main/npm/ts/tobago-jsf.ts
@@ -15,7 +15,7 @@
 * limitations under the License.
 */
 
-import {Listener, Phase} from "./tobago-listener";
+import {Listener} from "./tobago-listener";
 import {ReloadManager} from "./tobago-reload";
 import {Overlay} from "./tobago-overlay";
 
diff --git a/tobago-theme/tobago-theme-standard/src/main/npm/ts/tobago-overlay.ts b/tobago-theme/tobago-theme-standard/src/main/npm/ts/tobago-overlay.ts
index cdc4f2d..9135023 100644
--- a/tobago-theme/tobago-theme-standard/src/main/npm/ts/tobago-overlay.ts
+++ b/tobago-theme/tobago-theme-standard/src/main/npm/ts/tobago-overlay.ts
@@ -19,7 +19,6 @@
  * Create a overlay barrier and animate it.
  */
 
-import {DomUtils} from "./tobago-utils";
 import {Config} from "./tobago-config";
 import {Page} from "./tobago-page";