[docs-infra] Make the whole header clickable

[oliviertassinari]

Summary 💡

Make the whole header clickable, not just the anchor link

Screen.Recording.2023-10-08.at.23.03.45.mov

Examples 🌈

• https://stripe.com/docs/payments/paypal#disputed-payments
• https://tailwindcss.com/docs/customizing-spacing#extending-the-default-spacing-scale

Motivation 🔦

Faster to select to then copy the URL.

However:

• copying the URL directly feels wrong, "do not erase my clipboard!"
• we should still be able to select the text as before, I have only seen https://stripe.com/docs/payments/paypal#minimum-and-maximum-charge-amounts do this correctly.

[shubham168]

Hey @oliviertassinari , I'll work on this issue, assign this issue to me please

[diksha1627]

Hi @oliviertassinari i want work on this issue assign this issue to me

[Zain-RT]

hi @shubham168

[oliviertassinari]

I'm reopening to track #39603 (review), it's not clear that we took a step forward yet, we made one dimension significantly better, and another one significantly worse.