Flesh out todos

doc/TODO.md

@@ -2,6 +2,14 @@
 * Refactor broadcast source
 * Allow users to upload script asset sub-assets without first saving by making temporary files
 * Create playground for script assets
+    - Render on a modal canvas
 * Preview script assets in marketplace
+    - Render on a modal canvas
 * Add text assets and font selection
 * Allow custom scripts to pull recent twitch chats
+    - Serve the ones that occurred since last tick to tick() or give a ~30 second window of messages
+* Replace default script class with a seeding system from a filesystem directory
+    - Title
+    - Source code
+    - Logo (optional)
+    - Assets (optional)