Add path attribute to split cookies (#6298)

* Add "Path" attribute to "/"

Without this the browser defaults to a path of the parent of the
path in the request. See:
https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/Set-Cookie#pathpath-value

This means the cookie isn't included in api requests since the path
is too restrictive

* Update tests with split cookie path attribute

internal/daemon/controller/handler_test.go

@@ -92,6 +92,8 @@ func TestAuthenticationHandler(t *testing.T) {
 	assert.NotEmpty(t, cookies[handlers.JsVisibleCookieName].Value)
 	assert.True(t, cookies[handlers.HttpOnlyCookieName].HttpOnly)
 	assert.False(t, cookies[handlers.JsVisibleCookieName].HttpOnly)
+	assert.Equal(t, cookies[handlers.HttpOnlyCookieName].Path, "/")
+	assert.Equal(t, cookies[handlers.JsVisibleCookieName].Path, "/")
 	tok = cookies[handlers.JsVisibleCookieName].Value
 
 	pubId = attrs["id"].(string)