Footer: replace Prop-based "info links" with slottable links

[tishoyanchev]

Terms, Imprint, Privacy policy and Glossary are hardcoded and controllable via Prop. However, due to the dynamic nature of these info links, their addition needs to be flexible.
Remove them as hard-coded links, and instead, implement them via slot, similar to the "socials links".

<div slot="info">
    <ifx-link>Terms</ifx-link>
 </div>

Only the copyright-text Prop should remain.