[table] feat: new prop "enableColumnHeader"

[jmcglinch]

Fixes #5200

Checklist

• Includes tests
• Update documentation

Changes proposed in this pull request:

Adds enableColumnHeader prop to table and table2 components. The column header is not rendered if false.

Reviewers should focus on:

Focus on render logic relating to the column header. Also, check SYNC_TRIGGER_PROP_KEYS configuration.

Screenshot

[palantirtech]

Thanks for your interest in palantir/blueprint, @jmcglinch! Before we can accept your pull request, you need to sign our contributor license agreement - just visit https://cla.palantir.com/ and follow the instructions. Once you sign, I'll automatically update this pull request.

[adidahiya]

hey @jmcglinch, thanks for the PR! This gets us most of the way there, but there's a bug in rendering because of assumptions about the minimum column header height. there are references to Grid.MIN_COLUMN_HEADER_HEIGHT which need to be adjusted. I am working on a fix which I will push to this branch.

[adidahiya]

preview build: docs-app, table-dev-app