Bug - component examples with search input missing tabbable clear button

[jenny-s51]

Describe the problem A clear and concise description of the problem. Which components are affected?

Related: #8040, #8293

From @thatblindgeye 's review comments here and here.

• [ ] Dual List Selector: Basic with Search, Complex Items with Actions , With tree
• [ ] Menu: Drilldown with inline filter, Filtering with search input
• [ ] Toolbar: Toolber items, Sticky toolbar
• [ ] DataList: Expandable content in toolbar
• [ ] Masthead: utilities and user dropdowns demo

Expected behavior A clear and concise description of the expected behavior. Search Inputs should have tabbable clear button.

[tlabaj]

@thatblindgeye @jenny-s51 can we remove the application launcher from this list since it is deprecated?

[thatblindgeye]

@tlabaj Removed that and updated the list to include some other examples/demos that should be updated as well