Task: Add lint dart format

lib/src/configurable/configurable.dart

@@ -12,4 +12,4 @@ String getConfig(String key, {String? defaultValue}) =>
 bool hasConfigkey(String key) => SystemConfig.containsKey(key);
 
 /// set config into memory
-void setConfig(String key, String? value) => SystemConfig.set(key, value);
+void setConfig(String key, String? value) => SystemConfig.set(key, value);

lint.sh

@@ -0,0 +1,3 @@
+#!/bin/sh -e
+
+dart format --fix lib/