[Enhancement]: Customizability for tabular rep modals

[theiliad]

1. Ability to customize headers

• These strings currently map to your axes configs & group label

• You should be able to just override

• If finished, check this box pls

2. Formatting column values

• some of these would be affected by the universal locale layer that we'll add in the future
• however, you should still be able to override here
• Specially date formatting

• If finished, check this box pls

3. Providing your own full set of rows & headers

• This is in case you have an entirely custom tabular rep. that you'd like to show instead of our predefined one

  • User should still have a way to access our predefined table, in case they just want to add a column or two...

• If finished, check this box pls

4. Customizing the CSV output

• Similar to # 3, ability to both customize the full csv, or just add some areas

• If finished, check this box pls

Related issues

#1573

[nstuyvesant]

Please consider using the new date-fns@3.0.0 which is written in TypeScript distributed as ESM. This will reduce the @carbon/charts bundle a good bit. And there are only 8 files that use date-fns in the library now.