Post-docsy conversion

[chalin]

trafficstars

Followup to #134. Alternative tracker for the post-docsy milestone.

• [ ] Clean out any unused assets, layouts, etc from the pre-docsy version of the site
  • [x] Delete unused nav-panel.html #281 -- handled this file separately in support of #282 and #149
  • [x] Package.json cleanup: remove unused bulma et al #292
  • [ ] Check if we still need specific files after initial docsy-conversion:
    • [x] #139
    • [x] #388
• [x] Versions menu UX issue #304
• [ ] Doc-version landing pages:
  • [ ] Consider reintroducing page descriptions on version landing pages as part of IA discussion #386
  • [x] Doc-version landing pages need rework #300
• [ ] Automatic page generation is preserved (see https://github.com/etcd-io/website/issues/111 & https://github.com/etcd-io/etcd/issues/12768)
• [x] Ensure that the branch name in the config file is switched back to master (https://github.com/etcd-io/website/issues/246, https://github.com/etcd-io/website/pull/248)
• [x] (Minor) Fix broken internal links: latest https://github.com/etcd-io/website/pull/227
• [x] List of generated metrics files (as per conversation https://github.com/etcd-io/website/pull/171#issuecomment-810533295) https://github.com/etcd-io/website/pull/242
• [x] Setup Blog URL Permalinks #140
• [x] Re-enable analytics - #249
• [x] Footer: copyright date range should match license file #258
• [x] Correct UI feedback links #256
• [x] Ensure that author names appear in blog entries #259
• [x] Address Hugo warning: Page.Dir is deprecated and will be removed in a future release. Use .File.Dir #263
• [x] Homepage CTA buttons: replace GH by Learn more #305