chore: add config files

Author: Shuunen

.editorconfig

@@ -0,0 +1,12 @@
+root = true
+
+[*]
+indent_style = space
+indent_size = 2
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.md]
+trim_trailing_whitespace = false

.npmrc

@@ -0,0 +1 @@
+enable-pre-post-scripts=true

.nvmrc

@@ -0,0 +1 @@
+22.13.1

.repo-checker.json

@@ -0,0 +1,3 @@
+{
+  "license": "MIT"
+}