add editorconfig and zed settings

.editorconfig

@@ -0,0 +1,10 @@
+[*]
+charset = utf-8
+insert_final_newline = true
+end_of_line = lf
+
+indent_style = tab
+indent_size = 2
+max_line_length = 100
+quote_type = single
+trim_trailing_whitespace = true

.zed/settings.json

@@ -0,0 +1,7 @@
+// Folder-specific settings
+//
+// For a full list of overridable settings, and general information on folder-specific settings,
+// see the documentation: https://zed.dev/docs/configuring-zed#settings-files
+{
+	"formatter": "prettier"
+}