Use Histogram Diff Algorithm For Git also in vc.el

I have set `diff.algorithm` to `histogram` anyway, so let's also use this in `vc.el`.

Taken from https://github.com/dgutov/diff-hl?tab=readme-ov-file#notes.

init.el

@@ -1637,6 +1637,9 @@ Note that this workaround is incomplete, as explained in this comment."
               transient-values-file (expand-file-name "transient/values.el" emacs-d-userdata)
               transient-history-file (expand-file-name "transient/history.el" emacs-d-userdata)))
 
+(use-package vc
+  :init (setopt vc-git-diff-switches '("--histogram")))
+
 
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