Input field doesnt resize for longer text, breaks readability

[freinold]

Describe the bug
When inputting longer text, you are only able to see 3 lines of text at once.
Especially when inputting text from a mail or longer content pieces and adding some extra information in the prompt, it is hard to find the different parts.

To Reproduce

1. Go to 'Chat Mode'
2. Input a text longer than 3 lines
3. The input field doesn't resize to fit more text

Expected behavior
When longer text is input, the field should also resize more to give the user more space to work and see the prompt they are creating.

Screenshots
Current state:

Desktop (please complete the following information):

• OS: Windows 10
• Browser: Firefox
• Version: 115.17.0esr

[github-actions]

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