Make link checker GUI more intuitive

[osmers]

Motivation

The link checker GUI is not very intuitive - it is not obvious that the text under source is clickable, often the option to centrally replace a link is overlooked, leading to more work.

Proposed Solution

Rethink the GUI of the link checker to make it more intuitive

Alternatives

Keep it as it is

User Story

As a user of the CMS I want to see all relevant functions immediately so that I do not waste time trying to figure out how everything works.

Design Requirements

We would need a redesign of the GUI that makes the most essential functions more prominent/intuitive so that even users who are not well versed in computers can use it easily.