Add editorconfig (#11551)

.editorconfig

@@ -0,0 +1,17 @@
+[*]
+end_of_line = lf
+insert_final_newline = false
+charset = utf-8
+max_line_length = 80
+trim_trailing_whitespace = true
+
+[*.{html,js,json,sass,md,mmark,toml,yaml}]
+indent_style = space
+indent_size = 2
+
+[*.{sh}]
+indent_style = space
+indent_size = 4
+
+[Makefile]
+indent_style = tab

.gitignore

@@ -31,9 +31,6 @@ nohup.out
 public/
 resources/
 
-# User-specific editorconfig files
-.editorconfig
-
 # Netlify Functions build output
 package-lock.json
 functions/