make peer dependencies install by default

[dylan-conway]

What does this PR do?

makes install.peer default to true in bunfig.toml. also makes installing peer dependencies work

fixes #5567
closes #5565
fixes #5209
fixes #5128
fixes #4472
fixes #3410

• Documentation or TypeScript types (it's okay to leave the rest blank in this case)
• Code changes

How did you verify your code works?

added tests

[github-actions]

❌ @dylan-conway 10 files with test failures on bun-darwin-aarch64:

• test/bundler/bundler_edgecase.test.ts
• test/cli/install/bun-install.test.ts
• test/integration/next/default-pages-dir/test/dev-server.test.ts
• test/js/bun/spawn/spawn.test.ts
• test/js/bun/test/test-test.test.ts
• test/js/bun/util/filesink.test.ts
• test/js/node/watch/fs.watch.test.ts
• test/js/third_party/postgres/postgres.test.ts
• test/js/third_party/prisma/prisma.test.ts
• test/js/web/fetch/body-stream.test.ts

View test output

^{#ce7b54405cc8f60260c893c6a71871b87110cdbd}

[github-actions]

❌ @dylan-conway 5 files with test failures on linux-x64:

• test/cli/install/bun-install.test.ts
• test/js/bun/util/filesink.test.ts
• test/js/node/watch/fs.watch.test.ts
• test/js/third_party/postgres/postgres.test.ts
• test/js/third_party/prisma/prisma.test.ts

View test output

^{#ce7b54405cc8f60260c893c6a71871b87110cdbd}

[github-actions]

❌ @dylan-conway 5 files with test failures on linux-x64-baseline:

• test/bundler/bun-build-api.test.ts
• test/cli/install/bun-install.test.ts
• test/js/node/watch/fs.watch.test.ts
• test/js/third_party/postgres/postgres.test.ts
• test/js/third_party/prisma/prisma.test.ts

View test output

^{#ce7b54405cc8f60260c893c6a71871b87110cdbd}

[github-actions]

❌ @dylan-conway 9 files with test failures on bun-darwin-x64-baseline:

• test/cli/install/bun-install.test.ts
• test/js/bun/spawn/spawn-streaming-stdout.test.ts
• test/js/bun/spawn/spawn.test.ts
• test/js/bun/util/filesink.test.ts
• test/js/node/fs/fs.test.ts
• test/js/third_party/postgres/postgres.test.ts
• test/js/third_party/prisma/prisma.test.ts
• test/js/third_party/webpack/webpack.test.ts
• test/js/web/timers/setTimeout.test.js

View test output

^{#ce7b54405cc8f60260c893c6a71871b87110cdbd}

[gonzaloriestra]

The documentation still says that peer dependencies are not installed by default:

• https://bun.sh/guides/install/add-peer
• https://bun.sh/docs/cli/install

Is it outdated?