chore: sync with R versions of shiny, bslib, htmltools

[gadenbuie]

Fixes #1255

Compare

• rstudio/shiny@ae308e0...47526a7
• rstudio/htmltools@f8e0591...038ef7b
• rstudio/bslib@2ec3067...5e974fd

Relevant PRs

• Internal popover/tooltip changes not mentioned in the py-shiny changelog
  • tooltip()/popover()'s connectCallback() method now handles multiple calls rstudio/bslib#1020
  • More update_popover() fixes rstudio/bslib#1017
• fix(card): Report full screen state at <id>_full_screen rstudio/bslib#1032
• feat(gap-spacing): Apply gap spacing margin-bottom rules to conditionalPanel too rstudio/bslib#1031
• Use bs-danger instead of bs-danger-text-emphasis for text color on error messages rstudio/shiny#4001

[cpsievert]

Should add that this closes #1255 somewhere?

[cpsievert]

Thanks!