fix: skip uri modification if authority host match

This adds a check in our `resolveExternalUri` patch to skip modifying if
the `authority` and the `location.host` match to prevent
`localhost:<port>/proxy/<port>` from being modified.

patches/proxy-uri.diff

@@ -134,10 +134,10 @@ Index: code-server/lib/vscode/src/vs/code/browser/workbench/workbench.ts
 +		credentialsProvider: config.remoteAuthority ? undefined : new LocalStorageCredentialsProvider(), // with a remote, we don't use a local credentials provider
 +		resolveExternalUri: (uri: URI): Promise<URI> => {
 +			let resolvedUri = uri
-+			const localhostMatch = extractLocalHostUriMetaDataForPortMapping(uri)
++			const localhostMatch = extractLocalHostUriMetaDataForPortMapping(resolvedUri)
 +
 +			if (localhostMatch) {
-+				if (config.productConfiguration && config.productConfiguration.proxyEndpointTemplate) {
++				if ((resolvedUri.authority !== location.host) && config.productConfiguration && config.productConfiguration.proxyEndpointTemplate) {
 +					resolvedUri = URI.parse(new URL(config.productConfiguration.proxyEndpointTemplate.replace('{{port}}', localhostMatch.port.toString()), window.location.href).toString())
 +				} else {
 +					throw new Error(`Failed to resolve external URI: ${uri.toString()}. Could not determine base url because productConfiguration missing.`)