0.4.7

⭐ Improvements

• show last added series first on the pages with a collection info, series info and collection estimation (#1621)
• (import) recognize neperf. as imperforated (#812)
• (import) recognize Беззубц. as imperforated (#1606)

🐞 Bugs Fixed

• correctly expand catalog numbers when a string starts with numbers (#1518)
• show custom error page for 400 Bad Request errors (#1351)

📖 Documentation Updates

• compile a list of external dependencies and their versions across the environments (#1585)

🔨 Internal Changes

• test: port JavaScript unit tests from Jasmine to Jest (#1484)
• build: migrate to Spring Boot 2.2 (#1149)
• ci: discontinue usage of Danger (#1600)
• ci: discontinue usage of 0pdd (#1595)
• ci: implement own mechanism for creating issues from todo comments in code (#1610)
• ci: migrate from Travis to GitHub Actions (#1154)
• ci: perform validation of Liquibase migrations during deployment (#383)

📄 Other Changes

• sitemap.xml: add a list of non-empty collections to make them indexable by search engines (#1605)
• sitemap.xml: add a list of countries to make them indexable by search engines (#1605)
• sitemap.xml: add a list of categories to make them indexable by search engines (#1605)