Map suggestion colors from Zed1 themes (#3835)

This PR maps the suggestions colors from the Zed1 themes to the Zed2
themes.

Release Notes:

- N/A

crates/theme_importer/src/zed1/converter.rs

@@ -83,6 +83,7 @@ impl Zed1ThemeConverter {
             warning: convert(diagnostic_summary.icon_color_warning),
             error: convert(diagnostic_summary.icon_color_error),
             hint: editor.hint.color.map(zed1_color_to_hsla),
+            predictive: editor.suggestion.color.map(zed1_color_to_hsla),
             ..Default::default()
         })
     }