The button to mark all notifications to be read is in different positions in the work package view and the notifications centre.

**Work packages view**

<figure class="image op-uc-figure" style="width:50%;"><div class="op-uc-figure--content"><img class="op-uc-image" src="/api/v3/attachments/22900/content"></div><figcaption class="op-uc-figure--description">Work packages view</figcaption></figure>

**Notification center**

<figure class="image op-uc-figure" style="width:50%;"><div class="op-uc-figure--content"><img class="op-uc-image" src="/api/v3/attachments/22899/content"></div><figcaption class="op-uc-figure--description">Notification centre</figcaption></figure>

**Split view**

<figure class="image op-uc-figure" style="width:50%;"><div class="op-uc-figure--content"><img class="op-uc-image" src="/api/v3/attachments/22901/content"></div><figcaption class="op-uc-figure--description">Split view</figcaption></figure>

### Expected

In the Work Package full view:

* Begin of the insertion[x]End of the insertion Begin of the deletion [ ]End of the deletion The Mark-as-read-button in the top toolbar shall vanish.
* Begin of the insertion[x]End of the insertion Begin of the deletion [ ]End of the deletion Instead a round button is shown in the activity tab only.
* Begin of the insertion[x]End of the insertion Begin of the deletion [ ]End of the deletion This results in a relatively big white space before the actual activity entries (or the comment field) start

<figure class="image op-uc-figure" style="width:75%;"><div class="op-uc-figure--content"><img class="op-uc-image" src="/api/v3/attachments/22914/content"></div></figure>