IO-1720 Add bill mark as exported.

client/src/translations/es/common.json

@@ -183,6 +183,7 @@
 				"federal_tax": "",
 				"iouexists": "",
 				"local_tax": "",
+				"markexported": "",
 				"markforreexport": "",
 				"new": "",
 				"noneselected": "",
@@ -197,6 +198,7 @@
 				"created": "",
 				"deleted": "",
 				"exported": "",
+				"markexported": "",
 				"reexport": ""
 			},
 			"validation": {