[website] Clarify Pro/Premium support (#34607)
[website] Clarify Pro/Premium support (#34607)

Signed-off-by: Olivier Tassinari <2824cdc333e4fc36261fd6810f150cfc6830135d@gmail.com>
Co-authored-by: José Rodolfo Freitas <10a69637ae8eca05cedb302cdaff4fb8222a617c@gmail.com>
mui-org/material-ui,mui-org/material-ui,mui-org/material-ui