BREAKING CHANGE(decorators): Migrate to TC39 standard decorators (accessor) across components, update tsconfig and bump dependencies

ts_web/elements/dees-appui-mainselector.ts

@@ -34,12 +34,12 @@ export class DeesAppuiMainselector extends DeesElement {
 
   // INSTANCE
   @property({ type: Array })
-  public selectionOptions: (interfaces.ISelectionOption | { divider: true })[] = [
+  accessor selectionOptions: (interfaces.ISelectionOption | { divider: true })[] = [
     { key: '⚠️ Please set selection options', action: () => console.warn('No selection options configured for mainselector') },
   ];
 
   @property()
-  public selectedOption: interfaces.ISelectionOption = null;
+  accessor selectedOption: interfaces.ISelectionOption = null;
 
   public static styles = [
     cssManager.defaultStyles,