[cashtab-components] update storybook logo

Summary:
T2539

Update logo in storybook to match existing suite of Cashtab logos

package-lock.json is also impacted because npm_modules had to be deleted and reinstalled to clear previously cached image. See D11717, which isolates this change so that this diff will only change the logo.

Test Plan:

rm -rf node_modules
npm i
npm run storybook

Observe new logo

Reviewers: #bitcoin_abc, emack

Reviewed By: #bitcoin_abc, emack

Subscribers: emack

Differential Revision: https://reviews.bitcoinabc.org/D11716