Add `/options/license` and `/options/gitignore` to `.ignore` (#30219)

Ignore this folder in tools like `rg` or `ag`. Also sorted the entries
alphabetically.

.ignore

@@ -4,6 +4,8 @@
 /modules/options/bindata.go
 /modules/public/bindata.go
 /modules/templates/bindata.go
-/vendor
+/options/gitignore
+/options/license
 /public/assets
+/vendor
 node_modules