Merge pull request #6043 from LibreSign/backport/6041/stable31

[stable31] fix: handle undefined signers in getAllFiles filter

Author: vitormattos

src/store/files.js

@@ -278,7 +278,7 @@ export const useFilesStore = function(...args) {
 							Object.entries(this.files).filter(([key, value]) => {
 								if (filter.signer_uuid) {
 									// return true when found signer by signer_uuid
-									return value.signers.filter((signer) => {
+									return value.signers?.filter((signer) => {
 										// filter signers by signer_uuid
 										return signer.sign_uuid === filter.signer_uuid
 									}).length > 0