Update Storyteller to v0.6.0 (#307)

# Problem

Storyteller has some updates for nameless storybooks and a QOL change to
useStorybooks that we'd like to consume

# Solution

Bumped Storyteller to v0.6.0 and updated usage of useStorybooks to be
compatible

# Checklist

- [x] Ran `lune run test` locally before merging

src/Plugin/PluginApp.luau

@@ -64,7 +64,7 @@ local function App(props: Props)
 			Sidebar = React.createElement(Sidebar, {
 				selectStory = selectStory,
 				selectStorybook = selectStorybook,
-				storybooks = storybooks,
+				storybooks = storybooks.available,
 			}),
 		}),
 

wally.toml

@@ -8,7 +8,7 @@ exclude = ["*"]
 
 [dependencies]
 ModuleLoader = "flipbook-labs/[email protected]"
-Storyteller = "flipbook-labs/storyteller@0.5.0"
+Storyteller = "flipbook-labs/storyteller@0.6.0"
 React = "jsdotlua/[email protected]"
 ReactRoblox = "jsdotlua/[email protected]"
 ReactSpring = "chriscerie/[email protected]"