Use latest @solana/wallet-adapter-base, export reusable feature names

[jordaaash]

https://github.com/solana-labs/wallet-adapter/pull/726 moved some of the types from @solana/wallet-standard-wallet-adapter-base into @solana/wallet-adapter-base. This PR updates @solana/wallet-standard-wallet-adapter-base to use and re-export them.

Additionally, following https://github.com/wallet-standard/wallet-standard/pull/79, apps and wallets needing to feature detect with strings like if ("solana:signTransaction") in wallet.features is verbose and error prone. Exporting and using these feature names as constant strings will help.

Blocked by https://github.com/wallet-standard/wallet-standard/pull/79

[changeset-bot[bot]]

🦋 Changeset detected

Latest commit: 57ddcbd74e171a7b0dae1712abd03008379b3ef7

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 5 packages

| Name | Type | | -------------------------------------------- | ----- | | @solana/wallet-standard-wallet-adapter-react | Patch | | @solana/wallet-standard-wallet-adapter-base | Patch | | @solana/wallet-standard-features | Patch | | @solana/wallet-standard-wallet-adapter | Patch | | @solana/wallet-standard | Patch |

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