feat files: Show File Size and Directory's sub items count

fix styles: make thin-small 15px instead of 14px (was too small)

src/js/utils.js

@@ -29,3 +29,21 @@ export function reportError(err) {
   let action = show('errorDialog', {description: err.message});
   store.dispatch(action);
 }
+
+const sizes = {
+  'GB': Math.pow(2, 30),
+  'MB': Math.pow(2, 20),
+  'KB': Math.pow(2, 10),
+  'B': -1
+}
+export function humanSize(size) {
+  console.log(size);
+  for (let key in sizes) {
+    let value = sizes[key];
+
+    console.log(value);
+    if (size > value) {
+      return Math.round(size / value) + key;
+    }
+  }
+}