FIx Web IDE file template test

What does this MR do?

• Checks for elements before clicking them so that the retry loop will not try to click an element that is no longer present or not present yet.
• Waits for 5 seconds between retries to allow time for the commit to happen.

See #196034 (closed)

Does this MR meet the acceptance criteria?

Conformity

• [-] Changelog entry
• [-] Documentation (if required)
• Code review guidelines
• Merge request performance guidelines
• Style guides
• [-] Database guides
• [-] Separation of EE specific content