feat: refactor operational learning map

Author: samshara

app/src/views/OperationalLearning/KeyInsights/i18n.json

@@ -1,7 +1,7 @@
 {
     "namespace": "operationalLearning",
     "strings": {
-        "opsLearningSummariesHeading": "Summary of learnings",
+        "opsLearningSummariesHeading": "Summary of learning",
         "keyInsightsDisclaimer": "These summaries were generated using AI and Large Language Models. They represent {numOfExtractsUsed} prioritised extracts out of {totalNumberOfExtracts} from the DREF and EA documents between {appealsFromDate} - {appealsToDate}. An initial automatic assessment of the quality of the summaries resulted in around 78% performance in terms of relevancy, coherence, consistency and fluency. To see the methodology behind the prioritisation {methodologyLink}.",
         "methodologyLinkLabel": "click here",
         "keyInsightsReportIssue": "Report an issue",

app/src/views/OperationalLearning/OperationalLearningMap/index.tsx

@@ -2,7 +2,7 @@
     "namespace": "operationalLearning",
     "strings": {
         "downloadMapTitle": "Operational learning map",
-        "learningLegendLabel": "Learnings",
+        "legendLabel": "Learning count",
         "learningCountLegendLabel":"Learning count"
     }
 }