[candidate parameters] diagnosis fix (#9365)

After We merge the diagnosis new feature into 26.0-release([New Feature]
Tracking and Configuration of Candidate's Diagnosis Evolution
(#7560)), it cause a bug.
if diagnosis is empty. the whole candidate param page will be broken.

modules/candidate_parameters/jsx/DiagnosisEvolution.js

@@ -61,6 +61,7 @@ class DiagnosisEvolution extends Component {
   formattedDiagnosisEvolution() {
     const dxEvolution = this.state.data.diagnosisEvolution;
     let formattedDxEvolution = [];
+    try {
     dxEvolution.map((record) => {
       let formattedDiagnosis = [];
       Object.entries(JSON.parse(record.Diagnosis)).map((entry, index) => {
@@ -94,6 +95,9 @@ class DiagnosisEvolution extends Component {
         ]
       );
     });
+    } catch (error) {
+        console.error('Error parsing JSON:', error);
+    }
     return formattedDxEvolution;
   }