* use lifecycle callbacks in insert_code_snipper element
* make the custom element search for the code block if not provided
* update stories to demonstrate insert code behavior

Make insertCodeSnippetElement find codeblock in the context if not provided

See merge request !4543



Merged-by: Mark Florian <mflorian@gitlab.com>
Approved-by: Jean-Gabriel Doyon <jgdoyon@gitlab.com>
Approved-by: Denys Mishunov <dmishunov@gitlab.com>
Approved-by: Mark Florian <mflorian@gitlab.com>
Reviewed-by: Mark Florian <mflorian@gitlab.com>
Reviewed-by: Denys Mishunov <dmishunov@gitlab.com>
Reviewed-by: Andrei Zubov <azubov@gitlab.com>
Co-authored-by: Andrei Zubov <azubov@gitlab.com>

# [91.9.0](v91.8.0...v91.9.0) (2024-09-04)

### Features

* **GlDuoChat:** make insert code snippet work with server-generated elements ([ce66a88f](ce66a88f))