Fix heading styles in Glossary Definition and Tooltip

[pettinarip]

In recent changes, we have changed a bit how we display the heading on the Glossary Definition component, and this affects the Glossary Tooltip styles.

Description

This PR fixes the style issues by:

• using the new Heading component with DS styles
• removing the GlossaryDefinition dependency on GlossaryTooltip since they look quite different now (no more reusability here)

Bonus: added a new story for the open state of GlossaryTooltip to avoid getting these regressions again.

[netlify[bot]]

✅ Deploy Preview for ethereumorg ready!

Name	Link
🔨 Latest commit	aa21459e46a1510b34d64c21212ac552362c6e75
🔍 Latest deploy log	https://app.netlify.com/sites/ethereumorg/deploys/6679c034dc877f0008e7f5f6
😎 Deploy Preview	https://deploy-preview-13205--ethereumorg.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.
Lighthouse	7 paths audited Performance: 51 (🟢 up 4 from production) Accessibility: 92 (no change from production) Best Practices: 84 (🔴 down 8 from production) SEO: 93 (no change from production) PWA: - View the detailed breakdown and full score reports

---

To edit notification comments on pull requests, go to your Netlify site configuration.

[corwintines]

@pettinarip @TylerAPfledderer I think this will be ready now

I added the glossary-tooltip namespace into .storybook/i18next.ts, and changed the term from big-endian to bridge since big-endian isn't in glossary-tooltip.json.

[wackerow]

@nloureiro Mind approving these changes in Chromatic if they look okay to you?

https://www.chromatic.com/review?appId=63b7ea99632763723c7f4d6b&number=13205&type=linked&view=changes

[pettinarip]

@pettinarip @TylerAPfledderer I think this will be ready now

I added the glossary-tooltip namespace into .storybook/i18next.ts, and changed the term from big-endian to bridge since big-endian isn't in glossary-tooltip.json.

Nice! thanks!

[nloureiro]

@nloureiro Mind approving these changes in Chromatic if they look okay to you?

https://www.chromatic.com/review?appId=63b7ea99632763723c7f4d6b&number=13205&type=linked&view=changes

looks good to me. approved on Chromatic :)