This PR introduces internal feature flags for testing purposes. These
flags will not be displayed on regular instances to prevent customer
confusion.
Additionally, a new feature flag, `contact_chatwoot_support_team`, has
been added for Chatwoot Cloud. This flag disables contact support for
third-party onboarded accounts, as support will be handled by the
original affiliate team.
Co-authored-by: Pranav <pranav@chatwoot.com>