improve textarea padding, focus style and text contrast in dark mode

[euotiniel]

I found some things that could be improved, from the inputs section.

Description:

1. Textarea Padding: The textarea lacks padding, causing the text to be too close to the edges.
2. Text Contrast in Dark Mode: The text in both input and textarea fields is too light, making it hard to read in dark mode.
3. Focus Style in Textarea: The textarea does not have the same focus indicator as the input, creating visual inconsistency.

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Expected Behavior:

• Add padding to the textarea.
• Improve the text contrast in dark mode.
• Ensure that the textarea has the same focus style as the input.