This PR modifies `tsconfig.base.json` by setting the following
strictness properties to true: `strict`, `noUncheckedIndexedAccess` and
`noImplicitOverride`.
In packages where compilation errors were observed, these settings were
opted out, and TODO comments were added to make it easier to track the
roadmap for converting everything to strict mode.
The following packages now have increased strictness, which prevents new
errors from being accidentally introduced:
- storage-vercel-blob
- storage-s3*
- storage-gcs
- plugin-sentry
- payload-cloud*
- email-resend*
- email-nodemailer*
*These packages already had `strict: true`, but now have
`noUncheckedIndexedAccess` and `noImplicitOverride`.
Note that this only affects the `/packages` folder, but not
`/templates`, `/test` or `/examples` which have a different `tsconfig`.
Previously we had been downgrading rimraf to v3 simply to handle clean
with glob patterns across platforms. In v4 and newer of rimraf you can
add `-g` to use glob patterns.
This change updates rimraf and adds the flag to handle globs in our
package scripts to be windows compatible.
This PR makes changes to every storage adapter in order to add
browser-based caching by returning etags, then checking for them into
incoming requests and responding a status code of `304` so the data
doesn't have to be returned again.
Performance improvements for cached subsequent requests:

This respects `disableCache` in the dev tools.
Also fixes a bug with getting the latest image when using the Vercel
Blob Storage adapter.
**BREAKING:**
Improves type-safety of collection / global slugs by using `CollectionSlug` / `UploadCollectionSlug` and `GlobalSlug` types instead of `string` in these places:
Adds `UploadCollectionSlug` and `TypedUploadCollection` utility types
This also changes how we suggest to add an upload collection to a cloud-storage adapter:
Before:
```ts
azureStorage({
collections: {
[Media.slug]: true,
},
})
```
After:
```ts
azureStorage({
collections: {
media: true,
},
})
```