pw_web: Export TypeScript type definitions from package.json
pw_web: Export TypeScript type definitions from package.json

Change-Id: I8c6accefb6d0a2f5c3422c92fef6e1f491eb8589
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/105480
Commit-Queue: Auto-Submit <14637eda5603879df170705285bf30f5996692f0@pigweed.google.com.iam.gserviceaccount.com>
Pigweed-Auto-Submit: Asad Memon <84eac2368409798d001877238faa1272d0c14230@google.com>
Reviewed-by: Anthony DiGirolamo <4cc40125edc24ec5bc72df7917ea0b403ee8cebe@google.com>

google/pigweed,google/pigweed,google/pigweed,google/pigweed,google/pigweed,google/pigweed,google/pigweed,google/pigweed,google/pigweed,google/pigweed