Overview:
Standardize the analytics event naming convention by removing inconsistent colon prefixes from Network Graph events to match the established pattern used by other features.

Problem:
Network Graph events use a colon prefix pattern (Network Graph: ...) while all other features use space-separated prefixes (Workload CVE ..., Compliance ..., etc.). Additionally, two Network Graph-related events (External IPs Side Panel Opened, External Flows Toggle Clicked) don't follow any prefix pattern.

Implementation Details:
Option 1 (Minimal - recommended):

• Remove colons from 4 Network Graph events
• Network Graph: Cluster Level Simulator Opened -> Network Graph Cluster Level Simulator Opened

Option 2 (Comprehensive):

• Also add prefix to orphan events:
• External IPs Side Panel Opened -> Network Graph External IPs Side Panel Opened
• External Flows Toggle Clicked -> Network Graph External Flows Toggle Clicked

Acceptance Criteria:

• [ ] All event prefixes use consistent space-separated format (no colons)
• [ ] Related events within a feature share the same prefix
• [ ] Update event names in Amplitude Data Governance to match

Files to Update:

• apps/platform/src/hooks/useAnalytics.ts:21-26 - Update event constants

Related Tickets:

• ROX-32641 - Discovery: Conduct Amplitude audit (identified this issue)