fix: images not working in MR/Issue comments
This MR fixes the rendering of images in MR/Issue comments on both Overview page and in the diff view.
The MR introduces unified handling of HTML and Markdown comments to ensure that in all parts of the apps we change relative links to absolute links.
| before | after | |
|---|---|---|
| MR Diff |  |
 |
| MR/Issue Overview Description |  |
 |
| MR/Issue Overview Comment |  |
 |
Related to #303 (closed)
Edited by Tomas Vik