fix: regressions introduced by new releases of CID & multicodec (ipfs#3442)

Few regressions had been introduced by

multiformats/js-cid@0e11f03#diff-25a6634263c1b1f6fc4697a04e2b9904ea4b042a89af59dc93ec1f5d44848a26

multiformats/js-multicodec@25cf33f

This changes fix two remaining problems:

1. Change type of codec from string to code name.
2. No longer import removed JSON file and use exported table instead.

Co-authored-by: achingbrain <[email protected]>

Author: Gozala

package.json

@@ -4,7 +4,7 @@
   "private": true,
   "dependencies": {
     "dot-prop": "^5.0.0",
-    "ipfs": "^0.52.1",
+    "ipfs": "^0.52.2",
     "ipfs-css": "^0.13.1",
     "react": "^16.8.6",
     "react-dom": "^16.8.6",