Remove inline comments from JavaScript functions

[koenvdwetering]

Summary

This pull request removes inline comments from JavaScript functions in the GTM tagging implementation. The code functionality remains unchanged; only non-essential comments have been removed to reduce code verbosity.

Key Changes

• Removed inline comments from tagging_gtm_simple_hash() function in iframe.phtml
• Removed inline comments from tagging_gtm_advanced_hash() function in iframe.phtml
• Removed inline comments from event handling logic in script-pusher.phtml

Details

The following comments were removed as they were self-explanatory given the surrounding code:

• "Add items and quantities" - the forEach loop clearly iterates over items
• "Join all parts and encode to base64" - the variable names and btoa() call are self-documenting
• "Add user agent (normalized: lowercase, spaces removed)" - the code clearly shows normalization
• "Add logic to store event" - the conditional and function calls are explicit
• "Ensure we don't break the event" - the error handling intent is clear from context

No functional changes were made to the code logic or behavior.

https://claude.ai/code/session_01JhJgj1WnVFrireJtTLxTCb