MENDELU/UI fixes (v2) - their demanded changes before deploy

[jr-rk]

UI changes demanded by MENDELU

FOOTER

• Add link to Open Science centre https://osc.mendelu.cz/36299-repozitar to footer
• Add contact repozitar@mendelu.cz to footer
• Add link to OpenAIRE (https://explore.openaire.eu/) to footer
• Add link to BASE (https://www.base-search.net/) to footer
• Fix Contac Us page (/contact)
• ❓Fix copyright in footer

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• Display Citace PRO
• Add contact via requested config value to home-news.component

[milanmajchrak]

Also remove