fix: patch in #366 and #367 for marked-terminal (#916)

This PR uses [`pnpm
patch`](https://www.petermekhaeil.com/til/pnpm-patch/) to pull in the
following proposed fixes for `marked-terminal`:

* https://github.com/mikaelbr/marked-terminal/pull/366
* https://github.com/mikaelbr/marked-terminal/pull/367

This adds a substantial test to `codex-cli/tests/markdown.test.tsx` to
verify the new behavior.

Note that one of the tests shows two citations being split across a line
even though the rendered version would fit comfortably on one line.
Changing this likely requires a subtle fix to `marked-terminal` to
account for "rendered length" when determining line breaks.

pnpm-lock.yaml

@@ -9,6 +9,11 @@ overrides:
   micromatch: ^4.0.8
   semver: ^7.7.1
 
+patchedDependencies:
+  marked-terminal@7.3.0:
+    hash: 536fe9685e91d559cf29a033191aa39da45729949e9d1c69989255091c8618fb
+    path: patches/marked-terminal@7.3.0.patch
+
 importers:
 
   .:
@@ -66,7 +71,7 @@ importers:
         version: 15.0.8
       marked-terminal:
         specifier: ^7.3.0
-        version: 7.3.0(marked@15.0.8)
+        version: 7.3.0(patch_hash=536fe9685e91d559cf29a033191aa39da45729949e9d1c69989255091c8618fb)(marked@15.0.8)
       meow:
         specifier: ^13.2.0
         version: 13.2.0
@@ -4105,7 +4110,7 @@ snapshots:
 
   make-error@1.3.6: {}
 
-  marked-terminal@7.3.0(marked@15.0.8):
+  marked-terminal@7.3.0(patch_hash=536fe9685e91d559cf29a033191aa39da45729949e9d1c69989255091c8618fb)(marked@15.0.8):
     dependencies:
       ansi-escapes: 7.0.0
       ansi-regex: 6.1.0