update outdated partners page

Closes #478 (closed)

Some partners ( https://hifis.net/partners ) missing, need to check and update:

• base4nfdi, logo
• NFDI4Earth
• CASUS
• VISA Collaboration, logo 👉 is not really an entity per say, I would leave it as use case and not partner
• LEAPS, logo
• Helmholtz Logo Download
• HMC Logo
• Open Science Logo
• Helmholtz Leadership Academy Logo 👉 I haven't found an updated logo, where did we get the first version?
• DASHH 👉 since we are not so close to them afaik, having HIDA is enough, no?
• Software Heritage