feat: add a title and a description for trace segments (#332)

src/locales/lang/en.ts

@@ -382,5 +382,7 @@ const msg = {
   addExpressions: "Add Expressions",
   expressions: "Expression",
   unhealthyExpression: "Unhealthy Expression",
+  traceDesc:
+    "The trace segment serves as a representation of a trace portion executed within one single OS process, such as a JVM. It comprises a collection of spans, typically associated with and collected from a single request or execution context.",
 };
 export default msg;