Fix term popup not showing for uppercase terms

Author: baha-bouali

translate/src/modules/originalstring/components/OriginalString.tsx

@@ -68,7 +68,7 @@ export function OriginalString({
         const markedTerm = target.dataset['match'];
         if (markedTerm) {
           setPopupTerms(
-            terms.terms?.filter((t) => t.text.toLowerCase() === markedTerm) ??
+            terms.terms?.filter((t) => t.text.toLowerCase() === markedTerm.toLowerCase()) ??
               [],
           );
         }