fix: change embedded H5P resize delay to 1ms

[rhell4]

Client noticed some embedded H5P activities were leaving extra white space on the page when it resizes. This was because the iframe height wasn't being adjusted. It seems like a delay of 0ms is too fast for some content types (book is fine but document tool isn't).

Solution: change the delay to 1ms

Testing:

• Create a H5P activity
• Content type should be "Document tool"
• On one page add a few paragraphs of text, a image, etc. to make the content longer
• On another page add just 1 line of text so it is much smaller than the other page
• Ensure the "Display action bar and frame" activity setting is on (needed to easily grab the embedded HTML)
• Save and view the H5P activity
• Click on embed in the bottom action bar
• Copy the embed HTML
• Create a page activity
• Add the embed HTML to the page contents
• Save and view the page
• Move back and forwards between the H5P pages
• Ensure the whole Moodle page is adjusting to the correct content sizes so that there is no extra empty space

[keevan]

Code wise I see no issue with the changes here. Ideally things that need to happen in a specific order aren't done with timeouts, but sometimes timeouts are the simplest approach.

Happy for this to land as-is.