[client] Move some sys info to static place (#4446)

This PR refactors the system information collection code by moving static system information gathering to a dedicated location and separating platform-specific implementations. The primary goal is to improve code organization and maintainability by centralizing static info collection logic.

Key changes:
- Centralized static info collection into dedicated files with platform-specific implementations
- Moved `StaticInfo` struct definition to the main static_info.go file
- Added async initialization function `UpdateStaticInfoAsync()` across all platforms

client/system/info_android.go

@@ -15,6 +15,11 @@ import (
 	"github.com/netbirdio/netbird/version"
 )
 
+// UpdateStaticInfoAsync is a no-op on Android as there is no static info to update
+func UpdateStaticInfoAsync() {
+	// do nothing
+}
+
 // GetInfo retrieves and parses the system information
 func GetInfo(ctx context.Context) *Info {
 	kernel := "android"