refactor: replace strings.Replace with strings.ReplaceAll

strings.ReplaceAll(s, old, new) is a wrapper function for
strings.Replace(s, old, new, -1). But strings.ReplaceAll is more
readable and removes the hardcoded -1.

Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>
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Gitea Version: 1.28.0+dev-477-g8b6ad49a5f