vaadin/flow 8.0.0.alpha3 on GitHub

Vaadin Flow 8.0.0.alpha3

New Features:
- ⧉ Implement HasStyle in LitTemplate so you can add class names to the root element. PR:10903
  Makes it possible to use addClassName("hello") in the constructor. Class for the custom element cannot be added in the template.
Fixes:
- ⧉ Filter vaadin-core from versions pinning. PR:11027. Ticket:11025
- ⧉ Remove old router layouts content before navigation. PR:10973. Ticket:345
  Recursively removes content of the all nested router layouts of the given old content when the navigation occurs. This is needed to let Dependency Injection frameworks (Spring and CDI add-ons) to re-create managed components with no duplicates/leftovers.
- ⧉ Change construct-style-sheets-polyfill to be a runtime dependency. PR:10991. Ticket:10988
- ⧉ Update the used Opcode from 7 to 8. PR:10979. Ticket:10870
  Update used ClassVisitor ASM version from 7 to 8 to support Java16 record
- ⧉ Use IOUtils toStream and toString. PR:10975. Ticket:10893
  Use IOUtils toString and toInputStream to not change any characters in the file content.
⧉ All changes