[deps] bump render-markdown.nvim pin: 4286b83 → a778444

[stanfish06]

What

Bumps the render-markdown.nvim pin in nvim-pack-lock.json from 4286b83 to upstream main's current HEAD (a778444).

Why

Routine pin-freshness check (git ls-remote against every pin in nvim-pack-lock.json). This was the only plugin behind upstream that isn't already covered by an open tracking issue/PR (blink.cmp/mini.nvim churn is tracked by #333/#324; fff.nvim's drift is intentional per its 0.9.4 - 0.9.4 version pin and tracked by #271).

6 commits between the two revs, all feat/fix/chore:

a778444 feat: multiline table cell rendering
a5cc706 feat: add support for entirely replacing text with virtual lines
f94914e chore: refactor all table parsing logic to its own module
1c88406 chore: docs max line width and small refactors
facc647 fix: concealed backslash escape in tables
ed10bad chore: refactor computing concealed ranges into generic highlights module

Checked the diff against the options this config actually sets in lua/config/plugin_config.lua (file_types, completions.lsp.enabled, latex.*) — none of those are touched, and nothing in the range is tagged as breaking.

Test plan

• :SyncPkgs picks up the new rev and render-markdown.nvim loads without error
• :RenderMarkdown toggle still works on a markdown buffer
• LaTeX rendering (latex.enabled = true) still renders inline/block math

🤖 Generated with Claude Code

https://claude.ai/code/session_01U6uY41PVjC9ATbAGhuH6Ye

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Generated by Claude Code

[stanfish06]

Superseded. master pins render-markdown.nvim at 640a3ec (upstream 2026-09-15), newer than the a778444 (2026-09-14) proposed here. Branch also conflicts with master.