Describe the bug

https://github.com/charmbracelet/soft-serve/blob/main/pkg/web/git.go#L472
code in here should return a new err

		nRead, err := r.Read(p)
		if err == io.EOF {
			break
		}
		nWrite, err := f.ResponseWriter.Write(p[:nRead])
		if err != nil {
			return n, err
		}
		if nRead != nWrite {
			return n, err
		}

the err is nil , but here need return a new err

see golang io.Copy implement here
https://github.com/golang/go/blob/master/src/io/io.go#L431-L445

To Reproduce
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2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior
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Environment (please complete the following information):

• OS: [e.g. Linux]
• Terminal [e.g. kitty, iterm2, gnome-terminal]
• Version [e.g. v0.4.0]

Additional context
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I create a linter to detect code that returns a non-relevant nilness error bug. I checked the top 1000 GitHub Go repositories and found this, all result listed in alingse/sundrylint#4