Cardano Updates

Previously, the "Increment" dialog would always re-query the L1 utxo
state; this can be quite slow. Now, it just uses the previously-computed
value, and allows you a chance to refresh if you wish.

Resolves #2713 
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<!-- Consider each and tick it off one way or the other -->
* [ ] CHANGELOG updated or not needed
* [ ] Documentation updated or not needed
* [ ] Haddocks updated or not needed
* [ ] No new TODOs introduced or explained herafter

* [js] mithril-explorer from `0.8.2` to `0.8.3`

... until browser limits are hit, at that point every change in the store saves because it can't persist them into the local storage, making the UI totally unresponsive.

Signed-off-by: Eric Torreborre <[email protected]>

The Starlight docs build (txpipe/docs) failed compiling the v2 docset merged
in #950:

- advanced/stateful_cursor.mdx: a `</TabItem>` indented two spaces directly
  after a Markdown list was absorbed as a loose list-item paragraph, so MDX
  never saw the closing tag ("Expected the closing tag </TabItem>"). Moving the
  Tabs/TabItem JSX tags to column 0 with blank lines around the content puts
  the tags outside the list.
- how_it_works.mdx: harden the Mermaid block to canonical syntax (spaced
  dotted-link labels, non-reserved node id) so rehype-mermaid's img-svg
  renderer accepts it.

Verified with a full local `astro build` of txpipe/docs against this content:
195 pages built, the diagram rasterizes to SVG, all three new pages render.

Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>

The Starlight docs build (txpipe/docs) failed compiling the v2 docset:

- advanced/stateful_cursor.mdx: a `</TabItem>` indented two spaces directly
  after a Markdown list was absorbed as a loose list-item paragraph, so MDX
  never saw the closing tag ("Expected the closing tag </TabItem>"). Move all
  the Tabs/TabItem JSX tags to column 0 with blank lines around the content so
  the tags sit outside the list.
- how_it_works.mdx: harden the Mermaid block to canonical syntax (spaced
  dotted-link labels, non-reserved node id) so rehype-mermaid's img-svg
  renderer accepts it.

Verified with a full local `astro build` of txpipe/docs against this content:
195 pages built, the diagram rasterizes to SVG, all three new pages render.

Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>

Co-authored-by: Copilot Autofix powered by AI <[email protected]>

Co-authored-by: Copilot Autofix powered by AI <[email protected]>

Co-authored-by: Copilot Autofix powered by AI <[email protected]>

Replace the function-level unused_variables allow with a scoped use.

* mithril-common from `0.7.5` to `0.7.6`
* mithril-stm from `0.10.35` to `0.10.36`