Features

• feat: implement content tags by @kazaneshimizu in #1879
• feat: placement of help button by @kazaneshimizu in #1887
• feat: add five languages by @kazaneshimizu in #1894
• feat: add amplitude by @kazaneshimizu in #1866
• feat: add sentry by @kazaneshimizu in #1867

Improvements

• refactor: change concept by @kazaneshimizu in #1853
• feat: create a new review for each request by @kazaneshimizu in #1856
• refactor: improve editor for usability by @kazaneshimizu in #1858
• refactor: ui improvement of labels by @kazaneshimizu in #1862
• refactor: upload sourcemap by @kazaneshimizu in #1870
• refactor: editor UX improvements by @kazaneshimizu in #1873
• refactor: merge nextjs-blog-starter into the main repository by @kazaneshimizu in #1875
• refactor: improvements by @kazaneshimizu in #1877
• refactor: change contents to array by @kazaneshimizu in #1884
• refactor: improvements by @kazaneshimizu in #1893