Commit 6604478

The Enriched Markdown tarball comes from Julius's [`fork/t3-mobile` branch](https://github.com/pingdotgg/enriched-markdown/tree/fork/t3-mobile). Its `t3-fork.json` records the exact source commit and upstream base. React block renderers, signed image sources, the `onLinksChange` link list (`renderers`, `resolveImageSource`, `onLinksChange`) and the iOS streaming memory bounds are upstream. The fork carries only changes with an open upstream PR: clipboard link metadata ([#962](https://github.com/software-mansion/enriched-markdown/pull/962)), development-host autolinks ([#961](https://github.com/software-mansion/enriched-markdown/pull/961)) and hash-route link fragments ([mity/md4c#454](https://github.com/mity/md4c/pull/454), arriving through [md4c#7](https://github.com/software-mansion-labs/md4c/pull/7)), `md4cFlags.preserveWindowsPaths`, which keeps backslashes in Windows drive paths in prose ([#1105](https://github.com/software-mansion/enriched-markdown/pull/1105), after [mity/md4c#477](https://github.com/mity/md4c/pull/477)), GitHub's strikethrough rules for `~` ([md4c#6](https://github.com/software-mansion-labs/md4c/pull/6)), `\(…\)` and `\[…\]` math delimiters ([#1043](https://github.com/software-mansion/enriched-markdown/pull/1043), [md4c#4](https://github.com/software-mansion-labs/md4c/pull/4)), iOS Copy as Markdown keeping bold spans whole ([#1143](https://github.com/software-mansion/enriched-markdown/pull/1143)), line breaks in copied table cells written as `<br>` ([#1144](https://github.com/software-mansion/enriched-markdown/pull/1144)), and Android measuring text in the span order its view draws it, so code blocks nested in list items no longer make a reply overlap the next message ([#1145](https://github.com/software-mansion/enriched-markdown/pull/1145)). It also carries one fork-only change: iOS code blocks too big for one backing store draw through tiles, so a tall block with long lines no longer shows an empty pane ([pingdotgg/enriched-markdown#15](https://github.com/pingdotgg/enriched-markdown/pull/15)).