Release @hawtio/react 2.0.0

[tadayosi]

Let's release 2.0.0 by the end of this month, February 2026.

• PatternFly v6 is the latest active version.
• The 2.x branch has already been migrated to PatternFly v6 and looks stable.
• I already switched the default branch of the repository to 2.x.
• We decided to develop a Hawtio AI plugin as an external, independent plugin on top of hawtio/react 2.x (AI (chatbot) plugin #1569)

@grgrzybek @phantomjinx @jsolovjo @kariuwu @joshiraezcode @abkieling

[grgrzybek]

And:

• Jolokia 2.5.0 (but yet without Hawtio using openType information for composite/tabular types - this will come later)