fix: should attempt localstorage correctly before falling back to session storage

[haddowg]

Problem

Usage in the browser will always fallback to session storage rather than localstorage due to a simple logical conditional error. When local storage is available it should be used when requested before falling back to sessionstorage.

Changes

Corrects faulty condition so availability of local storage is evaluated correctly

Release info Sub-libraries affected

Bump level

• [ ] Major
• [ ] Minor
• [x] Patch

Libraries affected

• [ ] All of them
• [x] posthog-web
• [ ] posthog-node
• [ ] posthog-react-native

Changelog notes

• use localstorage over sessionstorage where available

[marandaneto]

@benjackwhite I think this is right but just double-checking since I don't know much about the so many storage options in the browser =D

[marandaneto]

@haddowg thanks for the PR Mind adding an entry to the changelog https://github.com/PostHog/posthog-js-lite/blob/main/posthog-web/CHANGELOG.md so we can merge and release that?

[haddowg]

@marandaneto hows that?