feat: style the table block with 3 variants

[ramboz]

The PR introduces the table block for plain data tables, and includes 3 styles (default, silent and emphasized).

Fix #66

Test URLs:

• Before: https://main--delta--hlxsites.hlx.page/drafts/alex/import/us/en/skymiles/airline-credit-cards/american-express-business-cards
• After: https://issue-66--delta--hlxsites.hlx.page/drafts/alex/import/us/en/skymiles/airline-credit-cards/american-express-business-cards

[aem-code-sync[bot]]

Hello, I'm Franklin Bot and I will run some test suites that validate the page speed. In case there are problems, just click the checkbox below to rerun the respective action.

• [ ] Re-run PSI Checks

[aem-code-sync[bot]]

Page	Score	PSI Audit	Google
/drafts/alex/import/us/en/skymiles/airline-credit-cards/american-express-business-cards

[ramboz]

Silent

Default

Emphasized