Discuss/Investigate Font Weight of Inline Code inside Headers

## Component/pattern to amend

Base typography (inline code)

## Context

@lyubomir-popov [noticed](https://github.com/canonical/vanilla-framework/pull/5242#issuecomment-2260689639) that `` elements inside of header elements use inline code font weight. He proposed we may be able to set their `font-weight` to `inherit` to solve this.

This could be adjusted [here](https://github.com/canonical/vanilla-framework/blob/78863b6e8868704c7fa2efb5fb4d72f01259a9af/scss/_base_code.scss#L15), but discussion / investigation would be needed to see what the desired behavior should be, as this would mean that inline code elements no longer control their own font weight.


Start by reviewing scss/_base_code.scss around line 15 and the linked pull request discussion about inline code inside headers. Investigate the desired font-weight behavior for these elements and confirm it across relevant header and inline-code patterns. Done means the behavior is agreed and the base typography styling is amended accordingly.

Written by the indexing model from the issue text.