Change the UI of apply patch (#1907)

<img width="487" height="108" alt="image"
src="https://github.com/user-attachments/assets/3f6ffd56-36f6-40bc-b999-64279705416a"
/>

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Co-authored-by: Gabriel Peal <gpeal@users.noreply.github.com>

codex-rs/tui/Cargo.toml

@@ -36,6 +36,7 @@ codex-login = { path = "../login" }
 codex-ollama = { path = "../ollama" }
 color-eyre = "0.6.3"
 crossterm = { version = "0.28.1", features = ["bracketed-paste"] }
+diffy = "0.4.2"
 image = { version = "^0.25.6", default-features = false, features = ["jpeg"] }
 lazy_static = "1"
 mcp-types = { path = "../mcp-types" }
@@ -72,10 +73,9 @@ unicode-width = "0.1"
 uuid = "1"
 
 
-
 [dev-dependencies]
+chrono = { version = "0.4", features = ["serde"] }
 insta = "1.43.1"
 pretty_assertions = "1"
 rand = "0.8"
-chrono = { version = "0.4", features = ["serde"] }
 vt100 = "0.16.2"