Buildify the world

Change-Id: I41c06a3f567bc45d401386cc32d9c40cb6ed95d8
diff --git a/y2020/www/BUILD b/y2020/www/BUILD
index c0daa07..c280e91 100644
--- a/y2020/www/BUILD
+++ b/y2020/www/BUILD
@@ -4,24 +4,24 @@
 ts_library(
     name = "main",
     srcs = [
-        "main.ts",
         "image_handler.ts",
+        "main.ts",
     ],
+    visibility = ["//y2020:__subpackages__"],
     deps = [
         "//aos/network/www:proxy",
         "//y2020/vision:vision_ts_fbs",
         "//y2020/vision/sift:sift_ts_fbs",
     ],
-    visibility = ["//y2020:__subpackages__"],
 )
 
 rollup_bundle(
     name = "main_bundle",
     entry_point = "y2020/www/main",
+    visibility = ["//y2020:__subpackages__"],
     deps = [
         "main",
     ],
-    visibility = ["//y2020:__subpackages__"],
 )
 
 filegroup(
@@ -30,7 +30,7 @@
         "**/*.html",
         "**/*.css",
     ]),
-    visibility=["//visibility:public"],
+    visibility = ["//visibility:public"],
 )
 
 genrule(
@@ -42,5 +42,5 @@
         "flatbuffers.js",
     ],
     cmd = "cp $(location @com_github_google_flatbuffers//:flatjs) $@",
-    visibility=["//y2020:__subpackages__"],
+    visibility = ["//y2020:__subpackages__"],
 )