[FEATURE] UI configuration

[RadovanTomik]

Brief description. Add a REST API endpoint for fetching and updating global UI configuration. For a list of all relevant values contact @tmilost. The update operations should be alowed only for admins. Example response:

{
"primary-color": "red",
"auth_link": "https://wahever.com"
"logo_url": "https://wahever.com/icon.svg"
}

Desired functionality acceptance criteria

• [ ] GET /ui-config
• [ ] PATCH /ui-config {"key": "new_value"}

[tmilost]

current values: activeThemeFile: "bbmri", activeLogosFiles: "bbmri", isFooterStatusPageVisible: true, footerStatusPageLink: "https://status.bbmri-eric.eu/", footerStatusPageText: "BBMRI-ERIC Status Page", isFooterFollowUsVisible: true, footerFollowUsLinkedin: "https://www.linkedin.com/company/bbmri-eric", footerFollowUsX: "https://twitter.com/BBMRIERIC", footerFollowUsPodcast: "https://www.bbmri-eric.eu/bbmri-eric/bbmri-eric-podcast/", isFooterWorkProgrammeVisible: true, footerWorkProgrammeLink: "https://www.bbmri-eric.eu/wp-content/uploads/BBMRI-ERIC_work-program_2022-2024_DIGITAL.pdf", isFooterPrivacyPolicyVisible: true, footerPrivacyPolicy: "https://www.bbmri-eric.eu/wp-content/uploads/AoM_10_8_Access-Policy_FINAL_EU.pdf", isFooterHelpLinkVisible: true, footerHelpLink: "mailto:negotiator@helpdesk.bbmri-eric.eu", isFooterCopyRightVisible: true, footerCopyRight: "© 2024 BBMRI-ERIC", isFooterLeftSideIconVisible: true, footerLeftSideIcon: "@/assets/images/bbmri/home-bbmri-png", footerLeftSideIconLink: "https://www.bbmri-eric.eu/", isFooterNewsletterVisible: true, footerNewsletter: "https://www.bbmri-eric.eu/news-event/"