Disconnect wallet method

[grod220]

Across crypto, wallets expose a disconnect() method to allow the user the ability to revoke sharing data with a web app (from the context of the web app itself). This is also consistent with cosmos wallets (see cosmos-kit and graz).

Task: add a disconnect() method to the injected Penumbra provider:

web/packages/client/src/index.ts

Lines 8 to 13 in 034da5c

	export interface PenumbraInjection {
	readonly connect: () => Promise<MessagePort>;
	readonly request: () => Promise<void>;
	readonly isConnected: () => boolean | undefined;
	readonly manifest: string;
	}

This will allow for better integrations with external partners: #1190

Approve vs connect

Also, in other wallets, these are two different states:

• approved: user has added website to connection whitelist
• connected: user has granted permission to share data

I find this distinction a little confusing and largely unnecessary. For Prax, we basically have treated these as one. Relating to disconnect(), we can probably feel free to remove the domain from the whitelist as well.