Waf Insights Dashboard Not Working

[AndersSahlin]

Describe the bug
The WAF policy Insights Dashboard does not work, multiple views are reporting errors.

Diagnostic settings are enabled in AGW and exports to a LAW.

• 'extend' operator: Failed to resolve column or scalar expression named 'ruleSetType_s'...
• 'where' operator: Failed to resolve scalar expression named 'ruleGroup_s'
• 'where' operator: Failed to resolve scalar expression named 'ruleGroup_s'
• 'where' operator: Failed to resolve scalar expression named 'ruleGroup_s'
• 'evaluate' operator: Failed to resolve column or scalar expression named 'policyScope_s'..
• 'where' operator: Failed to resolve table or column or scalar or graph expression named 'policyScopeName_s'...

[github-actions]

Message that will be displayed on users' first issue

[matsest]

The current workbook / source for this seems to rely on AzureDiagnostics logs, not Resource Specific. Same with the workbook her https://github.com/Azure/Azure-Network-Security/tree/master/Azure%20WAF/Workbook%20-%20AppGw%20WAF%20Triage%20Workbook

Would be great to have a resource specific version of this!