DataTable - Update Figma examples

[vavalos5]

Please update all DataTable examples in Figma so they:

• no longer have examples of the sidebar
• use the correct header
• use the correct filter icon
• update the buttons so they're using the new theme and not deprecated ones
• update the headings

See screenshot below:

• update filtering example to align to site

[vavalos5]

Ensure to update spinner examples too when datatable examples are completed as it has datatable examples with spinner