fix(angular): correctly print unary expression with + (#5405)

tests/html_angular/attributes.component.html

@@ -82,4 +82,5 @@
     {'btn-success': (dialog$ | async).level === dialogLevelEnum.SUCCESS,
       'btn-warning': (dialog$ | async).level === dialogLevelEnum.WARNING,
       'btn-svg': (dialog$ | async).level === dialogLevelEnum.DANGER}"
+    [stickout]="+toolAssembly.stickoutMm"
 ></div>