refactor code

Author: LuizFNJ

server/claim/claim-revision/claim-revision.service.ts

@@ -204,11 +204,11 @@ export class ClaimRevisionService {
         if (sources && Array.isArray(sources)) {
             for (let source of sources) {
                 try {
-                    const existingSource = await this.sourceService.findHref(source);
-                    if (existingSource && existingSource.length > 0) {
-                        for (let source of existingSource) {
-                            await this.sourceService.updateTargetId(source._id, claimId);
-                        }
+                    const existingSources = await this.sourceService.findHref(source);
+                    if (existingSources && existingSources.length > 0) {
+                        await Promise.all(existingSources.map(source => 
+                            this.sourceService.updateTargetId(source._id, claimId)
+                        ));
                     } else {
                         await this.sourceService.create({
                             href: source,