gitconfig: add some extra rules

Summary:
From https://github.com/simnalamburt/.dotfiles/blob/main/.gitconfig

Apache-2.0 license used.

Also:

 - fix `npm run` command
 - fix incorrect `.gitconfig` rule.

Signed-off-by: Yongmin Hong <revi@omglol.email>

Test Plan: Not really as well.

Reviewers: O1 revi & automations, revi

Reviewed By: O1 revi & automations, revi

Differential Revision: https://issuetracker.revi.xyz/D225

default.gitconfig

@@ -4,6 +4,11 @@
   name = Yongmin Hong
   email = revi@omglol.email
   signingkey = EA100E94
+# Don't alphabetize [user] section.
+[branch]
+  sort = committerdate
+[color]
+  ui = auto
 [commit]
   gpgSign = true
 [core]
@@ -21,12 +26,16 @@
   smudge = git-lfs smudge -- %f
   process = git-lfs filter-process
   required = true
+[format]
+  pretty = fuller
 [gitreview]
   username = revi
 [include]
   path = ~/.gitaliases
 [init]
   defaultBranch = master
+[log]
+  date = iso8601
 [pretty]
   show = fuller
 [rerere]

package.json

@@ -6,7 +6,7 @@
     "prettier": "^3.3.1"
   },
   "scripts": {
-    "pcheck": "prettier --check .",
-    "pwrite": "prettier --write ."
+    "p:c": "prettier --check",
+    "p:w": "prettier --write"
   }
 }