Add links Integreat Wiki

[MizukiTemma]

Motivation

It helps users if a link to Integreat Wiki is placed next to features/functionalities that often cause qurstions.

Links should directly go to the related part of Integreat Wiki, not the start page, to let users save effort.

TBD:

1. Which features and functionalities need help of Integreat Wiki (Service Team): candiates are Linkchecker, Translation, HIX.
2. How the links should look (icon?), where they should appear (UI/UX)

Proposed Solution

Put more links to Integreat Wiki.

Alternatives

User Story

Additional Context

We want to encourage users to visit Integreat Wiki to solve problems/questions by themselvs. (OKR)
We want to make Integreat System easier to use. (OKR)

Design Requirements

[timobrembeck]

As @JoeyStk mentioned, this is a duplicate of #867.