feat(mostRepeatedChar): adiciona resolucao questao09-mostrepeatedchar

09-mostRepeatedChar/index.js

@@ -1,4 +1,12 @@
 export function mostUsedChar(text) {
     // implementar logica aqui
-    return ""
+    let max = 0;
+    let maxRepeated = '';
+    text.split('').forEach(function(char){
+        if(text.split(char).length > max) {
+            max = text.split(char).length;
+            maxRepeated = char;
+        }
+    });
+    return maxRepeated;
 }