Add ls colors to cjs and mjs files (#14028)

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Add ls color highlighting for *.cjs and *.mjs files in line with regular
*.js files
Add an icon to *.cjs files in line with *.js and *.mjs files

crates/nu-command/src/viewers/icons.rs

@@ -201,6 +201,7 @@ pub fn icon_for_file(file_path: &Path, span: Span) -> Result<char, ShellError> {
             "cc" => '\u{e61d}',             // 
             "cert" => '\u{eafa}',           // 
             "cfg" => '\u{e615}',            // 
+            "cjs" => '\u{e74e}',            // 
             "class" => '\u{e256}',          // 
             "clj" => '\u{e768}',            // 
             "cljs" => '\u{e76a}',           // 