Use tabs for indentation in build tools JSON files per WP Coding Standards (WordPress#4419)

* chore: Update `.editorconfig` to match WordPress' upstream

* chore: Use tabs for indentation in `package.json` and `package-lock.json` files

* chore: Use tabs for indentation in `.eslines.json` file

* chore: Use tabs for indentation in `composer.lock` file

Author: ntwb

.editorconfig

@@ -1,14 +1,19 @@
-# http://editorconfig.org
+# This file is for unifying the coding style for different editors and IDEs
+# editorconfig.org
+
+# WordPress Coding Standards
+# https://make.wordpress.org/core/handbook/coding-standards/
+
 root = true
 
 [*]
-indent_style = tab
-end_of_line = lf
 charset = utf-8
-trim_trailing_whitespace = true
+end_of_line = lf
 insert_final_newline = true
+trim_trailing_whitespace = true
+indent_style = tab
 
-[{package.json,*.yml}]
+[*.yml]
 indent_style = space
 indent_size = 2
 

.eslines.json

@@ -1,11 +1,11 @@
 {
-    "branches": {
-        "default": ["downgrade-unmodified-lines"]
-    },
-    "processors": {
-        "downgrade-unmodified-lines": {
-            "remote": "origin/master",
-            "rulesNotToDowngrade": ["no-unused-vars"]
-        }
-    }
-}
+	"branches": {
+		"default": ["downgrade-unmodified-lines"]
+	},
+	"processors": {
+		"downgrade-unmodified-lines": {
+			"remote": "origin/master",
+			"rulesNotToDowngrade": ["no-unused-vars"]
+		}
+	}
+}