Dark theme text colors

[brzd]

Steps to reproduce

1. Set dark theme in nextcloud
2. Go to ocsms
3. Texts are difficult to read due to light colour on light coloured background

Expected behaviour

When dark theme is in use, set colours according to host

Actual behaviour

Text colours difficult to read

Server configuration

Nextcloud/ownCloud version:
21.0.2
PHP version:
7.4
HTTPd server:
Apache 2
Database engine & version:
MariaDB