[O11y][AWS] AWS Network Firewall Lens Migration

[rajvi-patel-22]

Manually migrate AWS Network Firewall visualizations to the lens in the current Kibana version 8.8.1 itself.

Preparation of data for testing

• Use sample_event.json / setup live instance using docker / mock data using a mock server to populate dashboards

Migration stats

AWS Network Firewall Dashboards	Before Migration				After Migration
	Control Panel	Search	Lens	Visualization	New Controls	Search	Lens	Visualization
[Logs AWS] Firewall Alerts	1	1	14	0	1	1	14	0
[Logs AWS] Firewall Flows	1	1	14	0	1	1	14	0
[Logs AWS] Firewall Overview	1	1	9	0	1	1	9	0

Dashboard : Fargate Overview

• Migrate 3 control panels to new input controls
  • [O11y][AWS] Migrate AWS Network Firewall input control to new control panel  #6995

Verification and Validation

• Verification of functionality remains the same after migration in Kibana
• Verification of data count of after-migrated visualization with before-migrated visualization in Kibana
• Verification of Dashboards is not distorted in the supported Kibana version (TBD)