feat(gatsby-plugin-gatsby-cloud): request customer feedback

[leithonenglish]

Adds functionality to collect feedback from customers. Randomly ask users to share feedback after interacting with the Indicator and a certain period of time has passed

• Displays the prompt once the 30 days have passed and the user has interacted with the Indicator at least 10 times
• If dismissed, don't display for another 30 days
• If clicked, don't display for another 30 days
• Share these settings across Preview so users aren't bombarded with feedback requests. Added cookies to track the feedback loop
• Updated tooltip to ensure that tooltip is not displayed and is not just invisible
• Added tip to the tooltip

Feedback tooltip prompt

Tooltip with new tip

[TylerBarnes]

PR titles in this repo should be made using the Conventional Commits spec. Can you update your title to something like feat(gatsby-plugin-gatsby-cloud): Add customer feedback modal? Thanks 😄

[TylerBarnes]

Nice work :) I left some comments about code style generally, nothing major. Pending these changes and a review/changes from @pvorozhe and @veryspry this looks good to go! 💪