docs: remove beta banner and legacy SDK tab#78

aimensahnoun wants to merge 1 commit into03-03-docs_resources_update_faq_and_glossary_with_legacy-aligned_content_and_accurate_links_refine_faq.mdx_and_glossary.mdx_to_keep_legacy_structure_content_while_removing_migration_artifacts_and_fixing_outdated_references._-_removed_RequestNetwork/mintlify-docs:03-03-docs_resources_update_faq_and_glossary_with_legacy-aligned_content_and_accurate_links_refine_faq.mdx_and_glossary.mdx_to_keep_legacy_structure_content_while_removing_migration_artifacts_and_fixing_outdated_references._-_removed_from

03-04-docs_nav_remove_beta_banner_and_hide_sdk_legacy_tab_from_navigation_clean_up_global_docs_navigation_by_removing_the_temporary_beta_status_messaging_and_taking_the_sdk_legacy_tab_out_of_the_top-level_tabs_for_now._-_removed_banneRequestNetwork/mintlify-docs:03-04-docs_nav_remove_beta_banner_and_hide_sdk_legacy_tab_from_navigation_clean_up_global_docs_navigation_by_removing_the_temporary_beta_status_messaging_and_taking_the_sdk_legacy_tab_out_of_the_top-level_tabs_for_now._-_removed_banneCopy head branch name to clipboard