Fix a regression with browser in package.json (#4187)

The fix to #4144 in version 0.25.3 introduced a regression that caused browser overrides specified in package.json to fail to override relative path names that end in a trailing slash. That behavior change affected the axios@0.30.0 package. This regression has been fixed, and now has test coverage.

Add support for certain keywords as TypeScript tuple labels (#4192)

Previously esbuild could incorrectly fail to parse certain keywords as TypeScript tuple labels that are parsed by the official TypeScript compiler if they were followed by a ? modifier. These labels included function, import, infer, new, readonly, and typeof. With this release, these keywords will now be parsed correctly. Here's an example of some affected code:

type Foo = [
  value: any,
  readonly?: boolean, // This is now parsed correctly
]

Add CSS prefixes for the stretch sizing value (#4184)

This release adds support for prefixing CSS declarations such as div { width: stretch }. That CSS is now transformed into this depending on what the --target= setting includes:

div {
  width: -webkit-fill-available;
  width: -moz-available;
  width: stretch;
}