Release measr 1.0.0

[wjakethompson]

Prepare for release:

• [x] git pull
• [x] Check current CRAN check results
• [x] Polish NEWS
• [x] urlchecker::url_check()
• [x] devtools::build_readme()
• [x] devtools::check(remote = TRUE, manual = TRUE)
• [x] devtools::check_win_devel()
• [x] revdepcheck::revdep_check(num_workers = 4)
• [x] Update cran-comments.md
• [x] git push
• [x] Draft blog post
• [x] Run data-raw/stan-scripts.R to update precompiled Stan code
• [x] Update rstan and StanHeaders versions in .github/workflows/R-CMD-check.yaml and .github/workflows/test-coverage.yaml

Submit to CRAN:

• [x] usethis::use_version('major')
• [x] devtools::submit_cran()
• [x] Approve email

Wait for CRAN...

• [x] Accepted :tada:
• [x] Add preemptive link to blog post in pkgdown news menu
• [x] usethis::use_github_release()
• [x] usethis::use_dev_version(push = TRUE)
• [x] Finish blog post
• [x] Tweet