Escape markdown in tools' ui_text (#27502)

Escape markdown in tools' `ui_text`

<img width="628" alt="Screenshot 2025-03-26 at 10 43 23 AM"
src="https://github.com/user-attachments/assets/bb694821-aae7-4ccf-a35a-a3317b0222d5"
/>


Release Notes:

- N/A

crates/assistant_tools/src/bash_tool.rs

@@ -8,6 +8,7 @@ use serde::{Deserialize, Serialize};
 use std::sync::Arc;
 use ui::IconName;
 use util::command::new_smol_command;
+use util::markdown::MarkdownString;
 
 #[derive(Debug, Serialize, Deserialize, JsonSchema)]
 pub struct BashToolInput {
@@ -43,7 +44,14 @@ impl Tool for BashTool {
 
     fn ui_text(&self, input: &serde_json::Value) -> String {
         match serde_json::from_value::<BashToolInput>(input.clone()) {
-            Ok(input) => format!("`{}`", input.command),
+            Ok(input) => {
+                let cmd = MarkdownString::escape(&input.command);
+                if input.command.contains('\n') {
+                    format!("```bash\n{cmd}\n```")
+                } else {
+                    format!("`{cmd}`")
+                }
+            }
             Err(_) => "Run bash command".to_string(),
         }
     }