Improve sidekick image on "Switch to GA4 Dashboard View" banner notification

[nfmohit]

Summary

Addresses issue:

• Sidekick image very small on GA4 dashboard prompt banner #6920

Relevant technical choices

This PR improves the size of the sidekick image on "Switch to GA4 Dashboard View" banner notification.

PR Author Checklist

• My code is tested and passes existing unit tests.
• My code has an appropriate set of unit tests which all pass.
• My code is backward-compatible with WordPress 5.2 and PHP 5.6.
• My code follows the WordPress coding standards.
• My code has proper inline documentation.
• I have added a QA Brief on the issue linked above.
• I have signed the Contributor License Agreement (see https://cla.developers.google.com/).

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Code Reviewer Checklist

• Run the code.
• Ensure the acceptance criteria are satisfied.
• Reassess the implementation with the IB.
• Ensure no unrelated changes are included.
• Ensure CI checks pass.
• Check Storybook where applicable.
• Ensure there is a QA Brief.

Merge Reviewer Checklist

• Ensure the PR has the correct target branch.
• Double-check that the PR is okay to be merged.
• Ensure the corresponding issue has a ZenHub release assigned.
• Add a changelog message to the issue.

[github-actions]

Size Change: +3 B (0%)

Total Size: 1.24 MB

Filename	Size	Change
./dist/assets/js/googlesitekit-main-dashboard-********************.js	75 kB	+3 B (0%)

ℹ️ View Unchanged

Filename	Size
./dist/assets/css/googlesitekit-admin-css-********************.min.css	48.5 kB
./dist/assets/css/googlesitekit-adminbar-css-********************.min.css	11.1 kB
./dist/assets/css/googlesitekit-wp-dashboard-css-********************.min.css	7.41 kB
./dist/assets/js/29-********************.js	2.8 kB
./dist/assets/js/30-********************.js	2.28 kB
./dist/assets/js/31-********************.js	3.72 kB
./dist/assets/js/32-********************.js	3.12 kB
./dist/assets/js/analytics-advanced-tracking-********************.js	769 B
./dist/assets/js/googlesitekit-activation-********************.js	22.6 kB
./dist/assets/js/googlesitekit-adminbar-********************.js	31.8 kB
./dist/assets/js/googlesitekit-api-********************.js	9.59 kB
./dist/assets/js/googlesitekit-components-gm2-********************.js	6.12 kB
./dist/assets/js/googlesitekit-components-gm3-********************.js	9.73 kB
./dist/assets/js/googlesitekit-data-********************.js	2.17 kB
./dist/assets/js/googlesitekit-datastore-forms-********************.js	9.22 kB
./dist/assets/js/googlesitekit-datastore-location-********************.js	2.09 kB
./dist/assets/js/googlesitekit-datastore-site-********************.js	16.3 kB
./dist/assets/js/googlesitekit-datastore-ui-********************.js	9.3 kB
./dist/assets/js/googlesitekit-datastore-user-********************.js	22.6 kB
./dist/assets/js/googlesitekit-entity-dashboard-********************.js	63.4 kB
./dist/assets/js/googlesitekit-i18n-********************.js	3.92 kB
./dist/assets/js/googlesitekit-modules-adsense-********************.js	73.3 kB
./dist/assets/js/googlesitekit-modules-analytics-4-********************.js	28.6 kB
./dist/assets/js/googlesitekit-modules-analytics-********************.js	83.6 kB
./dist/assets/js/googlesitekit-modules-********************.js	21.3 kB
./dist/assets/js/googlesitekit-modules-optimize-********************.js	19 kB
./dist/assets/js/googlesitekit-modules-pagespeed-insights-********************.js	21.3 kB
./dist/assets/js/googlesitekit-modules-search-console-********************.js	50.2 kB
./dist/assets/js/googlesitekit-modules-tagmanager-********************.js	32.7 kB
./dist/assets/js/googlesitekit-polyfills-********************.js	378 B
./dist/assets/js/googlesitekit-settings-********************.js	47.1 kB
./dist/assets/js/googlesitekit-splash-********************.js	65.3 kB
./dist/assets/js/googlesitekit-user-input-********************.js	39.9 kB
./dist/assets/js/googlesitekit-vendor-********************.js	319 kB
./dist/assets/js/googlesitekit-widgets-********************.js	16.6 kB
./dist/assets/js/googlesitekit-wp-dashboard-********************.js	60.4 kB
./dist/assets/js/runtime-********************.js	1.26 kB

_{compressed-size-action}