[misc] Move shared components to shared directory (#4286)

Moved the following directories:

```
  - management/client → shared/management/client
  - management/domain → shared/management/domain
  - management/proto → shared/management/proto
  - signal/client → shared/signal/client
  - signal/proto → shared/signal/proto
  - relay/client → shared/relay/client
  - relay/auth → shared/relay/auth
```

and adjusted import paths

shared/management/client/rest/events.go

@@ -0,0 +1,26 @@
+package rest
+
+import (
+	"context"
+
+	"github.com/netbirdio/netbird/management/server/http/api"
+)
+
+// EventsAPI APIs for Events, do not use directly
+type EventsAPI struct {
+	c *Client
+}
+
+// List list all events
+// See more: https://docs.netbird.io/api/resources/events#list-all-events
+func (a *EventsAPI) List(ctx context.Context) ([]api.Event, error) {
+	resp, err := a.c.NewRequest(ctx, "GET", "/api/events", nil, nil)
+	if err != nil {
+		return nil, err
+	}
+	if resp.Body != nil {
+		defer resp.Body.Close()
+	}
+	ret, err := parseResponse[[]api.Event](resp)
+	return ret, err
+}