git: Update configuration

Some improvements taken from
https://jvns.ca/blog/2024/02/16/popular-git-config-options/#submodule-stuff

git/.gitconfig

@@ -19,15 +19,19 @@
 [color]
 	ui = true
 [commit]
+	cleanup = scissors
 	verbose = true
 [core]
 	editor = nvim
 	excludesfile = ~/.config/git/ignore
 [diff]
-	tool = nvimdiff
+	algorithm = histogram
+	colorMoved = zebra
+	colorMovedWS = allow-indentation-change
 	context = 10
 	interHunkContext = 10
 	submodule = log
+	tool = nvimdiff
 [difftool]
 	prompt = false
 	trustExitCode = true
@@ -38,6 +42,7 @@
 [difftool "kitty"]
 	cmd = kitty +kitten diff $LOCAL $REMOTE
 [fetch]
+	fsckObjects = true
 	prune = true
 	pruneTags = true
 [http]
@@ -47,13 +52,13 @@
 [log]
 	follow = true
 [merge]
-	tool = nvimdiff1
 	conflictstyle = zdiff3
 	ff = only
+	tool = nvimdiff1
 [mergetool]
-	prompt = false
-	keepBackup = false
 	hideResolved = false
+	keepBackup = false
+	prompt = false
 [mergetool "nvimdiff1"]
 	hideResolved = true
 [pager]
@@ -74,8 +79,12 @@
 	smtpserver = /usr/bin/msmtp
 [stash]
 	showPatch = true
+[status]
+	submoduleSummary = true
 [submodule]
 	recurse = true
+[tag]
+	sort = -taggerdate
 [transfer]
 	fsckObjects = true
 [user]