chore: Update files list in package.json (#55)

List of files to include in package was not updated when restructuring
`lib` directory in #49.

package.json

@@ -36,13 +36,30 @@
   },
   "files": [
     "dist/",
+    "lib/browser-index.js",
     "lib/browser.js",
+    "lib/convert-cue-to-dom-tree.js",
     "lib/index.js",
+    "lib/parser/parse-cue.js",
+    "lib/parser/parse-options.js",
+    "lib/parser/parse-timestamp.js",
+    "lib/parser/parser.js",
+    "lib/parser/parsing-error.js",
+    "lib/parser/settings.js",
+    "lib/process/box-position.js",
+    "lib/process/compute-line-pos.js",
+    "lib/process/cue-style-box.js",
+    "lib/process/determine-bidi.js",
+    "lib/process/is-strong-rtl-char.js",
+    "lib/process/move-box-to-line-position.js",
+    "lib/process/parse-content.js",
+    "lib/process/process-cues.js",
+    "lib/process/style-box.js",
     "lib/vtt.js",
-    "lib/vttcue.js",
     "lib/vttcue-extended.js",
-    "lib/vttregion.js",
-    "lib/vttregion-extended.js"
+    "lib/vttcue.js",
+    "lib/vttregion-extended.js",
+    "lib/vttregion.js"
   ],
   "keywords": [
     "vtt",