fix: display notification when asset deployment fails

Closes #11338

src/app_service/service/community_tokens/service.nim

@@ -345,8 +345,11 @@ QtObject:
         chainId,
       )
 
-    except RpcException:
+    except RpcException as e:
       error "Error deploying contract", message = getCurrentExceptionMsg()
+      let data = CommunityTokenDeployedStatusArgs(communityId: communityId, 
+                                                  deployState: DeployState.Failed)
+      self.events.emit(SIGNAL_COMMUNITY_TOKEN_DEPLOY_STATUS, data)
 
   proc getCommunityTokens*(self: Service, communityId: string): seq[CommunityTokenDto] =
     try:

ui/app/AppLayouts/Communities/views/CommunitySettingsView.qml

@@ -667,7 +667,7 @@ StatusSectionLayout {
                 return
             }
 
-            Global.displayToastMessage(title, qsTr("View on etherscan"), "",
+            Global.displayToastMessage(title, url === "" ? qsTr("Something went wrong") : qsTr("View on etherscan"), "",
                                        loading, type, url)
         }
     }