Add inferred sex tables to stats page

[rileyhgrant]

Resolves #1355

Adds 2 tables to the stats page that display the number of inferred sex sample per genetic ancestry group in v4

[phildarnowsky-broad]

One tiny cleanup and a general comment, good to go otherwise.

[rileyhgrant]

Screenshots of tables:

Location of tables on page:

[ch-kr]

thank you so much for working on this!

I have a few comments:

• I wonder if the counts per sex karyotype in the first new table (counts across all of v4) should get merged with the existing table? By this, I mean, it might be a good idea to add the Sample count, XX, and XY subheaders to the existing diversity table, and then merge AMI counts into Remaining / Finnish into European.
• Could you reorder the genetic ancestry groups in these new tables so that they match the same order in the diversity table?
• With the above, could you update the labels in the new tables so that they are the same as the ones in the currently displayed table (e.g., "African/African American" -> "African")
• I'd prefer not keeping the v4 Genomes / Combined columns in the new non-UKB sex table

One additional comment: since this update impacts the stats page, I think it'd be a good idea to post screenshots in #gnomad_browser to get feedback.

[rileyhgrant]

Related: https://github.com/broadinstitute/gnomad_production/issues/1589

[rileyhgrant]

Commenting checklist for myself:

• Use iteration to render tables
• Add XX and XY to diversity table for v4
• Re-order ancestry groups to be consistent with table higher up on page
• "With the above, could you update the labels in the new tables so that they are the same as the ones in the currently displayed table (e.g., "African/African American" -> "African")"
  • I feel like going the opposite direction would be more consistent across the entire browser (make "African" -> "African/African American" in the currently displayed table)
• remove empty columns from non-ukb table
• "One additional comment: since this update impacts the stats page, I think it'd be a good idea to post screenshots in #gnomad_browser to get feedback."