Use CommonJS modules, fix imports

* Use single quotes
* Add 'sidebar.ts' to main
* Fix `SIDEBAR` import from 'gmail_css_class.ts'
* Remove ".ts" extensions from imports

* Build to 'build/' directory instead of a file. This creates one JS
  file per module by the Typescript compiler.

3 files changed, 4 insertions, 3 deletions

diff --git a/src/index.ts b/src/index.ts
index e5c3103..538d0c4 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -5,4 +5,5 @@
 // @match https://mail.google.com/*
 // ==/UserScript==
 
-import "./style.ts";
+import './style';
+import './sidebar';
diff --git a/src/sidebar.ts b/src/sidebar.ts
index 6e20980..4e106e1 100644
--- a/src/sidebar.ts
+++ b/src/sidebar.ts
@@ -1 +1 @@
-import SIDEBAR from './gmail_css_class.ts';
+import { SIDEBAR } from './gmail_css_class';
diff --git a/src/style.ts b/src/style.ts
index 4ed8fd3..1ef58b0 100644
--- a/src/style.ts
+++ b/src/style.ts
@@ -1,4 +1,4 @@
-import * as g from './gmail_css_class.ts';
+import * as g from './gmail_css_class';
 
 type GmailCSSDefinitions = { [selector in g.GmailCSSClass]: string };