fix(gatsby-plugin-offline): versioned import of idb-keyval (gatsbyjs#…

…24938)

* fix(sw): versioned import of idb-keyval

with the version included it is ok to cache it immutable alongside the other fingerprinted js files produced by Gatsby

* style: fix linting errors

* fix(sw): replace versioned import in sw-append.js

yarn.lock

@@ -2204,12 +2204,7 @@
   dependencies:
     "@types/node" "*"
 
-"@types/node@*":
-  version "14.0.13"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-14.0.13.tgz#ee1128e881b874c371374c1f72201893616417c9"
-  integrity sha512-rouEWBImiRaSJsVA+ITTFM6ZxibuAlTuNOCyxVbwreu6k6+ujs7DfnU9o+PShFhET78pMBl3eH+AGSI5eOTkPA==
-
-"@types/node@^8.5.7":
+"@types/node@*", "@types/node@^8.5.7":
   version "8.10.61"
   resolved "https://registry.yarnpkg.com/@types/node/-/node-8.10.61.tgz#d299136ce54bcaf1abaa4a487f9e4bedf6b0d393"
   integrity sha512-l+zSbvT8TPRaCxL1l9cwHCb0tSqGAGcjPJFItGGYat5oCTiq1uQQKYg5m7AF1mgnEBzFXGLJ2LRmNjtreRX76Q==