Content fixes

- Remove extraneous `ts-4-9` snippet references
    - These are auto-added by `frontpage`' CodeSnippets component
- Fix inaccurate prop types

docs/api/doc-block-canvas.md

@@ -70,6 +70,7 @@ The example above applied the parameter at the [story](../writing-stories/parame
 
 Type:
 
+<!-- prettier-ignore-start -->
 ```ts
 Array<{
   title: string | JSX.Element;
@@ -78,6 +79,7 @@ Array<{
   disabled?: boolean;
 }>;
 ```
+<!-- prettier-ignore-end -->
 
 Default: `parameters.docs.canvas.additionalActions`
 
@@ -164,7 +166,7 @@ Specifies which story's source is displayed.
 
 ### `source`
 
-Type: `'code' | 'format' | 'language' | 'type'`
+Type: `SourceProps['code'] | SourceProps['format'] | SourceProps['language'] | SourceProps['type']`
 
 Specifies props passed to the inner `Source` block. See [SourceProps](./doc-block-source.md#sourceprops).
 
@@ -188,7 +190,7 @@ Specifies the initial state of the source panel.
 
 ### `story`
 
-Type: `'inline' | 'height' | 'autoplay'`
+Type: `StoryProps['inline'] | StoryProps['height'] | StoryProps['autoplay']`
 
 Specifies props passed to the inner `Story` block. See [StoryProps](./doc-block-story.md#storyprops).
 

docs/api/doc-block-description.md

@@ -93,7 +93,6 @@ export const Button = () => <button>Click me</button>;
     'web-components/api-doc-block-description-example.ts.mdx',
     'common/api-doc-block-description-example.js.mdx',
     'common/api-doc-block-description-example.ts.mdx',
-    'common/api-doc-block-description-example.ts-4-9.mdx',
   ]}
 />