[bug]: Background of textarea fields is transparent

[gfellerph]

Describe the bug
The background of focused textarea fields is transparent. Before it was white. This does not work anymore if there's a different background color.

Expected behavior

Additional information
https://teams.microsoft.com/l/message/19:e7fa68fb13eb40b4bf4604edea5f4b3e@thread.tacv2/1725629178479?tenantId=3ae7c479-0cf1-47f4-8f84-929f364eff67&groupId=123c7c9e-052a-40e6-98d3-6cc6d46bad0a&parentMessageId=1725629178479&teamName=Design%20System&channelName=%F0%9F%9A%91%20Support&createdTime=1725629178479

Workaround

input.form-control:focus {
    background-color: white !important;
}