EES-5733 Table export options

[rianski]

Adds export as ODS and CSV and copy to clipboard options to data block tables. To be consistent with the table tool download options the CSV downloads the table data as a flat file with location codes

Also,

• added a copy table to clipboard option to permalink pages and final step of table tool.
• removed the export menu on charts when viewing / editing a data block in the data blocks tab, including in the chart builder.
• removed the context used for the chart export as it wasn't really necessary, I think it was originally intended to be used when the table export was added but wasn't, so it's simpler to just pass the ref in.

[amyb-hiveit]

I've left some initial comments. Also:

• I think the button needs to be in a consistent position with the Chart version. In your screenshot it's showing the 'move and reorder headers' button, but that should only show when you're editing a data block, where we don't need to show the export button, so I think it could be on the right.
• I'm getting an error on the front end site when try to download the ODS or copy to clipboard - TypeError: Cannot read properties of null (reading 'current') on tableRef in downloadTableOdsFile.ts (168:16)