feat: support copy-paste to google sheets / excel with formatting

[AyushAgrawal-A2]

closes #1183

Changes:

• Added styles in clipboard html to support formatting on paste. Tested on Google Sheets & Excel Web.

clipboard_formatting.webm

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[davidfig]

Works great across Microsoft 365 web and Google Sheets. The colors don't work in Excel desktop, but I think they're looking for something else in paste. Thanks for the PR!

[AyushAgrawal-A2]

Works great across Microsoft 365 web and Google Sheets. The colors don't work in Excel desktop, but I think they're looking for something else in paste. Thanks for the PR!

@davidfig
I am using ubuntu, and I don't have excel desktop. so i was unable to check / debug copy - paste to excel desktop.