build(deps): Bump vaadin.version from 24.9.4 to 25.0.0

[dependabot]

Bumps vaadin.version from 24.9.4 to 25.0.0.
Updates com.vaadin:vaadin-bom from 24.9.4 to 25.0.0

Updates com.vaadin:vaadin-maven-plugin from 24.9.4 to 25.0.0

Release notes

Sourced from com.vaadin:vaadin-maven-plugin's releases.

Vaadin 25.0.0

Upgrading · Docs · Get Started

New and Noteworthy

Supported versions

• Java version 21+ (up from 17+)
• Spring Boot 4 (up from 3)
• JakartaEE 11 (up from 10)
• Node 24 (up from 20)
• pnpm 11 (up from 7)
• React 19 (up from 18)
• JUnit 6 (up from 5)

Vaadin Eclipse plugin

In addition to IntelliJ and VS Code, there is now a plug-in for Eclipse

Simplified production builds

The default in new projects is that mvn install builds a production artifact without needing a production profile. Projects must have an optional dependency on com.vaadin/vaadin-dev. Optional dependencies are automatically left out of the production artifact.

This works out of the box for Maven + Gradle with Spring Boot or Quarkus. For other project types, you might still need a development and/or production profile.

New Aura theme, no material theme

There is a new Aura theme with a fresh, modern look. The Lumo theme remains as another theme option.

Components have new base styles to make it easier to create a completely custom theme.

Theme and styling changes

It is recommended that you write CSS as static files and use @StyleSheet to load them instead of using @Theme and frontend/themes. You can use @ColorScheme to define dark mode.

With themes as static CSS files, they can be unloaded and you can switch themes at runtime.

You can keep using @CssImport which places the CSS files inside the frontend bundle but that requires a bundle build and CSS cannot be unloaded.

Tailwind CSS support (experimental)

You can use Tailwind classes in your CSS and in your views once you enable to feature flag.

Components use Lit

All web components have been migrated from Polymer to Lit

Component updates

• Cluster support in Map component
• Markdown (& HTML) support in Tooltips
• TreeGrid flat hierarchy format support

High-level component communication

When building your own components or add-ons, you can now use beans, lists, maps and other collections instead of the Elemental JSON API, which was removed.

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Commits

• f7582b4 update addons and kits for Vaadin 25.0.0 (#8348)
• a11c180 update copilot to 25.0.0 (#8345) (#8347)
• 8ce30f0 update hilla to 25.0.0 (#8341) (#8343)
• 6bf1ce9 chore: update versions.json in 25.0 with latest WC (#8338)
• 47b9bee Update flow to 25.0.0 (#8337)
• 4a4a2d7 chore: upgrade license-checker to 3.0.0 (#8333) (#8334)
• c8410a5 chore: upgrade hilla/copilot rc2 (#8332)
• e791cec Update flow to 25.0.0-rc2 (#8329)
• c30d072 chore: update dependency after flow artifact renaming
• 37c93e5 chore: upgrade feature-pack to 25.0.0-rc1 [skip ci] (#8321)
• Additional commits viewable in compare view

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