Bump @solana/web3.js from 0.78.1 to 0.78.2 in /token-swap/js (#550)

Bumps [@solana/web3.js](https://github.com/solana-labs/solana-web3.js) from 0.78.1 to 0.78.2.
- [Release notes](https://github.com/solana-labs/solana-web3.js/releases)
- [Commits](https://github.com/solana-labs/solana-web3.js/compare/v0.78.1...v0.78.2)

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token-swap/js/package-lock.json

@@ -1756,9 +1756,9 @@
       "dev": true
     },
     "@solana/web3.js": {
-      "version": "0.78.1",
-      "resolved": "https://registry.npmjs.org/@solana/web3.js/-/web3.js-0.78.1.tgz",
-      "integrity": "sha512-ZJ2W1Xuin2O4ljvFZ7+KLOi9BdQhnub4+eLvcd6t3xTvR2G9axOOG428Ep7VRpeqjP0yZRJaofPqpxllrvmE6g==",
+      "version": "0.78.2",
+      "resolved": "https://registry.npmjs.org/@solana/web3.js/-/web3.js-0.78.2.tgz",
+      "integrity": "sha512-KqvtXhSq41UkgPYI7ZiGF43BJFKNFcbx8PjdBRAQKJ/lg5EjuRrtwPZUyjyiWe/DGLdSmKu1jwlmb/ctsL6+ZA==",
       "requires": {
         "@babel/runtime": "^7.3.1",
         "bn.js": "^5.0.0",