Change the color of placeholder text input and textarea fields to a darker gray

[rlucke]

change color of placeholder text to a darker gray to have a better contrast ratio

Fixes #632

[github-actions]

Hi @rlucke
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EDIT(@lkiesow): The ICLA has been filed. Thanks. It may take some time for Apereo to process the ICLA. Feel free to ignore this complaint for now and point others to this comment if anyone asks.

[github-actions]

This pull request is deployed at test.admin-interface.opencast.org/649/2024-06-05_13-47-46/ .
It might take a few minutes for it to become available.

[ziegenberg]

Hi @rlucke,

thank you for your PR. Can you elaborate a little bit on what was done here? Also, see #645 (comment) for reference.

[github-actions]

Use docker or podman to test this pull request locally.

Run test server using develop.opencast.org as backend:

podman run --rm -it -p 127.0.0.1:3000:3000 ghcr.io/opencast/opencast-admin-interface:pr-649

Specify a different backend like stable.opencast.org:

podman run --rm -it -p 127.0.0.1:3000:3000 -e PROXY_TARGET=https://stable.opencast.org ghcr.io/opencast/opencast-admin-interface:pr-649

It may take a few seconds for the interface to spin up.
It will then be available at http://127.0.0.1:3000.
For more options you can pass on to the proxy, take a look at the README.md.

[ziegenberg]

Note: I changed the title for a better release note entry, as they are auto-generated.

[ziegenberg]

Before the fix:

After the fix:

[ziegenberg]

This is looking good. As soon as we have the ICLA, this can be merged.

[lkiesow]

We have the ICLA → Merging