Improve SEO by changing the hardware wallet URL from `hww/` to `hardware-wallets/`

[Hugoo]

This is to improve SEO. "hww/" brings nothing to our SEO.

• https://wallet.page/hww/summary

We should also add a custom SEO description for the hardware wallet page:

Currently:

Expected:

Best Ethereum hardware wallets. Walletbeat provides a trustworthy, up-to-date source of information about the state of the Ethereum wallet ecosystem.

Also change this one for consistency:

https://wallet.page/embedded/summary

https://wallet.page/embedded-wallets/summary

But also check this note about embedded wallets: https://github.com/walletbeat/walletbeat/issues/147