build!: upgrade vaadin to 24.9.8 AND feat!: replace setClassNameGenerator with setPartNameGenerator AND refactor: avoid use of commons.lang3 AND docs: enhance class documentation in LegacyTwinColGrid AND docs: fix double brace in javadoc in LegacyTwinColGrid AND build: set version to 4.0.0-SNAPSHOT AND chore/ci

build!: upgrade vaadin to 24.9.8 AND feat!: replace setClassNameGenerator with setPartNameGenerator AND refactor: avoid use of commons.lang3 AND docs: enhance class documentation in LegacyTwinColGrid AND docs: fix double brace in javadoc in LegacyTwinColGrid AND build: set version to 4.0.0-SNAPSHOT AND chore/ci #55