Release 2.2.0

• Merge pull request #130 from romkor/dependabot/npm_and_yarn/release-it-15.0.0 (9ae9c8a)
• Bump release-it from 14.10.0 to 15.0.0 (696674e)
• Merge pull request #135 from m93a/patch (a06ecbb)
• fix formatting of Portal.svelte.d.ts (66defc7)
• added type definitions (d286d7f)
• Merge pull request #94 from cbenz/patch-1 (12d750f)
• Add "svelte" entry point to package.json (157c4a2)
• Merge pull request #75 from romkor/dependabot/npm_and_yarn/release-it-14.10.0 (868d9b8)
• Bump release-it from 14.4.1 to 14.10.0 (82b0521)
• Merge pull request #81 from romkor/dependabot/npm_and_yarn/babel/preset-env-7.14.8 (c1d8ffb)
• Bump @babel/preset-env from 7.12.11 to 7.14.8 (836dd2a)
• Merge pull request #74 from romkor/dependabot/npm_and_yarn/testing-library/jest-dom-5.14.1 (21cc8b1)
• Bump @testing-library/jest-dom from 5.11.9 to 5.14.1 (37f17a0)
• Merge pull request #76 from romkor/dependabot/npm_and_yarn/prettier-2.3.2 (89c19b5)
• Bump prettier from 2.2.1 to 2.3.2 (9b847a6)