refactor: necromancy to restore MV2 build

[lidel]

• [x] remove yarn and all the hackery around transitive dependency overrides
• [x] bump all dependencies
• [x] switch to ipfs-core for fewer deps
• [x] remove unused deps
• [x] Firefox manifest fix to pass latest webext lint
• [x] remove remaining window.ipfs code that was pulling dead dependencies (https://github.com/ipfs/in-web-browsers/issues/172)
• [ ] ensure https://github.com/ipfs/ipfs-companion/pull/1070 is ported (if still relevant)
• [ ] fix tests
• [ ] docker builds
• [ ] browserAction icon
• [ ] is-ipfs
• [ ] addFromURL
• [ ] webui preload
• [ ] remove ipfsProxy from options (migration)