git: Update configuration

git/.gitconfig

@@ -23,8 +23,9 @@
 	excludesfile = ~/.config/git/ignore
 [diff]
 	tool = nvimdiff
-	context = 8
-	interHunkContext = 8
+	context = 10
+	interHunkContext = 10
+	submodule = log
 [difftool]
 	prompt = false
 	trustExitCode = true
@@ -55,6 +56,8 @@
 	hideResolved = true
 [pager]
 	difftool = true
+[protocol "http"]
+	allow = never
 [pull]
 	rebase = false
 [push]
@@ -67,6 +70,12 @@
 	fsckObjects = true
 [sendemail]
 	smtpserver = /usr/bin/msmtp
+[stash]
+	showPatch = true
+[submodule]
+	recurse = true
+[transfer]
+	fsckObjects = true
 [user]
 	name = Sanchayan Maity
 	email = sanchayan@sanchayanmaity.net