### Steps to reproduce

1. Go to a work package table
2. Have multiple columns and add "project" as a column
3. For one work package, click on the project in order to change the project it belongs to
4. Type in some search text

### What is the buggy behavior?

* When freshly opened the input field is too wide:

<figure class="image op-uc-figure" style="width:50%;"><div class="op-uc-figure--content"><img class="op-uc-image" src="/api/v3/attachments/34230/content"></div></figure>

* When searching, the input shrinks even further, but the dropdown remains at the same width:

<figure class="image op-uc-figure" style="width:50%;"><div class="op-uc-figure--content"><img class="op-uc-image" src="/api/v3/attachments/34231/content"></div></figure>

### What is the expected behavior?

1. The input should always fit into the available space of the column Begin of the deletion
2. The dropdown should always have the same width as the input fieldEnd of the deletion

### Environment information

**OpenProject version**

unreleased/dev

**Browser**

* [x] Chrome
* [ ] Firefox
* [ ] Safari
* [ ] Mobile Safari
* [ ] Other (please specify)

**Language**

German