near-api-js 0.30.0

• yarn browserify 91971c5b
• yarn.lock 23303c32
• Merge pull request #403 from near/feat-multisig 5778b651
• Merge pull request #406 from near/dependabot/npm_and_yarn/typedoc-0.19.2 cea5e5cb
• Merge pull request #409 from near/dependabot/npm_and_yarn/bundlewatch-0.3.1 49f4608a
• fixed broken tests a8bafb4f
• Merge pull request #408 from near/debug-signer b51697ad
• Bump bundlewatch from 0.2.7 to 0.3.1 e0d23aa7
• adjust max bundle size b3dde405
• Fix error message in test 2fdcbc77
• Add debug toString to signer and key stores 4b5e6be1
• Bump typedoc from 0.18.0 to 0.19.2 95840a30
• removed optional chaining code, tests passing 9d612d9b
• Merge branch 'master' into feat-multisig 9013ed05
• revert dist/ 9784ce62
• major refactor and e2e testing 217bffbb
• deploy contract working 23381a72
• remove file 163a6483
• init AccountMultisig b415ca20
• yarn browserify 5b914f26
• yarn.lock 2e537450
• Bump typedoc from 0.17.8 to 0.18.0 3ce83275
• Bump ts-morph from 7.1.3 to 8.1.0 242ced27

https://github.com/near/near-api-js/compare/v0.29.1...v0.30.0