MDN add browsers short survey (mdn#7336)

* Add browsers survey to 5% audience

* remove unused

* Add prod values for survey

Allow alternate nightly spec URLs (mdn#7262)

chore(macros): delete unused XUL* macros (mdn#7305)

Remove HPKP from HTTP Sidebar (mdn#7225)

Use page types instead of tags in APIRef (mdn#7223)

* Use page types instead of tags in APIRef

* Update apiref test data

Merge pull request mdn#7148 from LeoMcA/mp-101-disabled-button-styling

MP-101: fix(button): disabled styling

Merge pull request mdn#7211 from LeoMcA/mp-120-show-error-message

MP-120: display error message from rumba

Merge pull request mdn#7308 from Guyzeroth/MP-106-colletion-card-spill

MP-106 Fix collection card spill

Use page type instead of tags for CSSSyntax macro (mdn#7290)

fix(plus): fix collection hero css (mdn#7300)