Add Web Monetization Community Forem link and fix tooltip bubbles

[sharon-wang]

Closes https://github.com/esse-dev/akita/issues/136.

Changes

• Add WM Community Forem link (https://community.webmonetization.org/) to the main akita view (for non-WM provider users) and to the tutorial resources view (for all users)
• Fix tooltip bubble placement for the bottom row in the tutorial resources view
• Add esse dev LinkedIn page to README (unrelated change, but throwing it in 😅)

Preview

(screenshots taken on hover)