add types for js-levenshtein

package-lock.json

@@ -1027,6 +1027,12 @@
 				"@types/istanbul-lib-report": "*"
 			}
 		},
+		"@types/js-levenshtein": {
+			"version": "1.1.0",
+			"resolved": "https://registry.npmjs.org/@types/js-levenshtein/-/js-levenshtein-1.1.0.tgz",
+			"integrity": "sha512-14t0v1ICYRtRVcHASzes0v/O+TIeASb8aD55cWF1PidtInhFWSXcmhzhHqGjUWf9SUq1w70cvd1cWKUULubAfQ==",
+			"dev": true
+		},
 		"@types/mocha": {
 			"version": "5.2.1",
 			"resolved": "https://registry.npmjs.org/@types/mocha/-/mocha-5.2.1.tgz",

package.json

@@ -156,6 +156,7 @@
   },
   "devDependencies": {
     "@ctrl/tinycolor": "^3.1.0",
+    "@types/js-levenshtein": "^1.1.0",
     "@types/mocha": "^5.2.0",
     "@types/moo": "^0.5.3",
     "@types/node": "^13.9.3",