feat: add multiple line to additional logos

[sandroscosta]

• Add a way to create multiple lines on the footer, so that we can mimic the same behaviour that exists on the marketing site

The new setting has be created with the idea of 1 array per line, similar to this example:

MFE_CONFIG["FOOTER_ADDITIONAL_LOGOS"] = '[[{"src": "https://nau-prod-richie-nau-media.rgw.nau.fccn.pt/media/filer_public_thumbnails/filer_public/2a/f5/2af51561-e2cd-4b12-8cbe-c62aca6e1727/barra.png__9851x1422_subsampling-2.png","alt": "PRR Plano de Recuperação e Resiliência, República Portuguesa, Financiado pela União Europeia NextGenerationEU","url": "https://www.fccn.pt/inovacao/projeto-nau-financiamento-sama/"},{"src": "https://nau-prod-richie-nau-media.rgw.nau.fccn.pt/media/filer_public_thumbnails/filer_public/64/a7/64a7c11d-c3f8-4487-95c0-46b3f8bb5236/4logos-feder_fse_nau_v2.png__600x720_subsampling-2.png","alt": "Compete2020, Portugal2020, União Europeia Fundo Europeu de Desenvolvimento Regional","url": "https://www.incode2030.gov.pt/"}], [{"src": "https://nau-prod-richie-nau-media.rgw.nau.fccn.pt/media/filer_public_thumbnails/filer_public/23/93/2393278b-fb7d-4f34-bfef-9bad17a2f71c/pt_preto_horizontal.svg__4563x1167.svg", "alt": "República Portuguesa, Ministério da Educação, Ciência e Inovação.", "url": "https://www.portugal.gov.pt/"}, {"src": "https://nau-prod-richie-nau-media.rgw.nau.fccn.pt/media/filer_public_thumbnails/filer_public/2d/7d/2d7d35ff-5b9b-4d15-83e6-8911a8393dd6/2024_logo-fccn-fct-b-preto.svg__852x190.svg", "alt": "FCCN - Serviços digitais FCT; FCT - Fundação para a Ciência e a Tecnologia", "url": "https://www.fccn.pt/"}]]'

https://github.com/fccn/nau-technical/issues/272

[igobranco]

LGTM ✔️

[igobranco]

@sandroscosta don't forgot to create a new release.