fix(cli): improve terminal output formatting and visual clarity (#8025)

Signed-off-by: Michael Neale <michael.neale@gmail.com>

crates/goose-cli/src/session/builder.rs

@@ -187,8 +187,7 @@ async fn offer_extension_debugging_help(
     // Create a debugging prompt with context about the extension failure
     let debug_prompt = format!(
         "I'm having trouble starting an extension called '{}'. Here's the error I encountered:\n\n{}\n\nCan you help me diagnose what might be wrong and suggest how to fix it? Please consider common issues like:\n- Missing dependencies or tools\n- Configuration problems\n- Network connectivity (for remote extensions)\n- Permission issues\n- Path or environment variable problems",
-        extension_name,
-        error_message
+        extension_name, error_message
     );
 
     // Create a minimal agent for debugging