Create a system proxy change after receiving a network map

This is experimental and needs more test.

the purpose of this change is to validate that a TLS connection stuck using old routes because of keepalive settings on the remote webserver are reset once netbird receives a network map

client/internal/proxy/state_other.go

@@ -0,0 +1,24 @@
+//go:build !darwin || ios
+
+package proxy
+
+import (
+	"github.com/netbirdio/netbird/client/internal/statemanager"
+)
+
+// ShutdownState is a no-op state for non-macOS platforms.
+type ShutdownState struct{}
+
+// Name returns the state name.
+func (s *ShutdownState) Name() string {
+	return "proxy_state"
+}
+
+// Cleanup is a no-op on non-macOS platforms.
+func (s *ShutdownState) Cleanup() error {
+	return nil
+}
+
+// RegisterState is a no-op on non-macOS platforms.
+func RegisterState(stateManager *statemanager.Manager) {
+}