client/web: fix globbing for file embedding

src/**/* was only grabbing files in subdirectories, but not in the src
directory itself.

Updates tailscale/corp#13775

Signed-off-by: Will Norris <will@tailscale.com>

client/web/web.go

@@ -42,7 +42,7 @@ import (
 // External packages that use the web client can `go mod vendor`, run `yarn build` to
 // build the assets, then those asset bundles will be able to be embedded.
 //
-//go:embed yarn.lock index.html *.js *.json src/**/*
+//go:embed yarn.lock index.html *.js *.json src/*
 var _ embed.FS
 
 //go:embed web.html web.css auth-redirect.html