docs: add module import instructions for idiomorph extension (#3350)

* docs: add module import instructions for idiomorph extension

Fixes #3349

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Co-Authored-By: Claude <noreply@anthropic.com>

* use the right import path

* Restore example to make it consistent in the examples

* fix manual bundle instructions too

* remove unnecessary script tag

* remove unminified version as well since it's not needed for htmx integration

* clear instruction on using min version with htmx

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Co-authored-by: Claude <noreply@anthropic.com>