Add Frontend Spotless + Upgrade to Java 17 + Update Dependencies (Fix Vulnerability)

Description

• Adds spotless for HTML, SCSS, and JS.

• Upgrades to Java 17

• Updates dependencies

  • Gradle: 7.1.1 -> 7.5.1
  • Spring Boot: 2.5.3 -> 2.7.3 (Fixes vulnerability explained in #21)
  • Spring Web: Unspecified -> 5.3.22
  • Spring Security: Unspecified -> 5.7.3
  • Added SpringDoc
  • Spring Dependency Management: 1.0.11.RELEASE -> 1.0.13.RELEASE
  • Spotless: 5.14.0 -> 6.10.0
  • Ben-Manes/Versions: 0.39.0 -> 0.42.0
  • OpenCSV: 5.5 -> 5.6
  • ModelMapper: 2.4.4 -> 3.1.0
  • Guava: 30.1.1-jre -> 31.1-jre
  • Lombok: 1.18.20 -> 1.18.24
  • Jackson: 2.12.3 -> 2.13.3
  • Thymeleaf Layout Dialect: Unspecified -> 3.1.0
  • HTTP Client: Unspecified -> 5.1.3
  • Log4j2: 2.15.0 -> 2.18.0
  • Webjars:
    • Locator Core: Unspecified -> 0.52
    • FontAwesome: 5.15.3 -> 6.1.2
  • Hibernate: 5.6.10.Final
  • Liquibase: 4.4.0 -> 4.15.0
  • H2: Unspecified -> 2.1.214
  • MySqlConnector: Unspecified -> 8.0.30
  • MariaDB Client: Unspecified -> 3.0.6
  • PostgreSQL: Unspecified -> 42.5.0

• Updates Available, But Didn't Update:

  • Sentry (Didn't want to break any monitoring setup)
  • Hibernate: 6.1.2.Final is the latest, but Spring Boot isn't compatible with it (it will be in Spring Boot 3)

Related Issues

• Resolves #70 (closed)
• Resolves #69 (closed)
• Resolves #21

Checklist

• I have added a changelog entry to reflect the significant changes I made.