[FEATURE] Add scroll or expand support for long translation results

[MOldtime]

Submission checklist

• I have searched existing issues and confirmed this has not been requested before.
• I have checked existing pull requests for similar changes.

Feature type

UI / visual improvement

Feature summary

When the translation result is long, only the first few sentences are displayed. The remaining content is cut off and cannot be viewed.

noctalia msg panel-toggle launcher /tr zh "This is a very long paragraph that contains multiple sentences. The translation result will be equally long. However, only the first two or three sentences are visible in the panel. Everything after that is silently cut off with no way to access it."

Motivation / use case

Translating multi-paragraph text, documentation snippets, or lengthy error messages is a common daily workflow. Currently, users are forced to manually split long text into smaller chunks and translate them one by one just to see the full result, which breaks context and significantly slows down the translation process. Adding scroll or expand support would allow seamless handling of long-form content in a single operation.

Proposed solution

The full translation result should be accessible by adding scroll support, adaptive height, or an expand/collapse toggle.

Alternatives considered

No response

References / related projects

No response

Additional context

No response