fix: update documentation to capitalize 'Act' and 'Moves' for consistency

Author: estruyf

docs/src/content/docs/slides/powerpoint-import.mdx

@@ -49,10 +49,10 @@ To do this, follow these steps:
 3. Type `Demo Time: Import PowerPoint Images as Slides` and select the command.
 4. Select the folder where you saved the images.
 5. Click on the `Select folder with PowerPoint exported slide images` button.
-6. Choose to create a new act file, or only import the slides.
-    - When you choose to create a new act file. All the slides will be added as moves and you are ready to present.
+6. Choose to create a new Act file, or only import the slides.
+    - When you choose to create a new Act file, all the slides will be added as Moves and the Act file will be ready to present.
 7. Let the import process finish.
-    - If you choose to create a new act file, the import process will open the new act file.
+    - If you choose to create a new Act file, the import process will open the new Act file.
 
 Check out the following video for a step-by-step guide on how to import images as slides: