Rename setCursorAlpha.jpg and preview func attribute

Author: Fernando-A-Rocha

assets/setCursorAlpha.jpg renamed to assets/cursor-alpha.jpg

@@ -4,7 +4,7 @@ client:
   description: |
     This function is used to change alpha (transparency) from the client's cursor.
   preview:
-    - path: '/assets/setCursorAlpha.jpg'
+    - path: '/assets/cursor-alpha.jpg'
       description: 'Example for setCursorAlpha'
   parameters:
     - name: 'alpha'

functions/Cursor/setCursorAlpha.yaml

@@ -48,7 +48,7 @@ $defs:
         description: List of noteworthy pieces of information for the function.
         items:
           type: string
-      preview:
+      preview_images:
         $ref: '#/$defs/preview'
       parameters:
         $ref: '#/$defs/parameters'
@@ -124,7 +124,7 @@ $defs:
           type: string
           description: Describe why the function needs checking by another person. What's problematic?
 
-  preview:
+  preview_images:
     type: array
     description: A list of picture assets demonstrating the function.
     items: