[Client] 良い感じに

src/web/app/common/scripts/gcd.js

@@ -0,0 +1,2 @@
+const gcd = (a, b) => !b ? a : gcd(b, a % b);
+module.exports = gcd;

src/web/app/common/tags/file-type-icon.tag

@@ -1,11 +1,10 @@
-<mk-file-type-icon><i class="fa fa-file-image-o" if={ kind == 'image' }></i>
+<mk-file-type-icon>
+	<i class="fa fa-file-image-o" if={ kind == 'image' }></i>
 	<style type="stylus">
 		:scope
 			display inline
-
 	</style>
 	<script>
-		@file = @opts.file
-		@kind = @file.type.split \/ .0
+		@kind = @opts.type.split \/ .0
 	</script>
 </mk-file-type-icon>