Height of input-group-text doesn´t match
### Summary As you can see in the screenshot the height of the `input-group-text` (https://gitlab.com) does not match the height of the input. This behaviour can also be observed on other places on GitLab.com. Seems to be a general problem with the CSS class. ### Relevant logs and/or screenshots **Firefox 66 (Windows):** ![image](/uploads/420004b9fffad50223c6aed59d786d18/image.png) **Edge 44 (Windows):** ![image](/uploads/70217baeab278a9a8fde6ec0b64a6219/image.png)
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