Elasticsearch: Make it compatible with the new log context functionality (#70697)

* elastic: make it work with the new logs-context

* add remaining fields

* lint fix

public/app/plugins/datasource/elasticsearch/LegacyQueryRunner.ts

@@ -7,6 +7,7 @@ import {
   DataQueryRequest,
   DataQueryResponse,
   dateTime,
+  ensureTimeField,
   Field,
   LogRowContextOptions,
   LogRowContextQueryDirection,
@@ -134,12 +135,13 @@ export class LegacyQueryRunner {
      */
     const timestampField = dataFrame.fields.find((f: Field) => f.name === this.datasource.timeField);
     const lineField = dataFrame.fields.find((f: Field) => f.name === this.datasource.logMessageField);
+    const otherFields = dataFrame.fields.filter((f: Field) => f !== timestampField && f !== lineField);
     if (timestampField && lineField) {
       return {
         data: [
           {
             ...dataFrame,
-            fields: [...dataFrame.fields, { ...timestampField, name: 'ts' }, { ...lineField, name: 'line' }],
+            fields: [ensureTimeField(timestampField), lineField, ...otherFields],
           },
         ],
       };