feat: remove legacy report view

[IanKrieger]

Removes legacy reporting view and related code

[github-actions]

[puLL-Merge] - brave/ads-ui@1233

Here is the code review for the provided PR diff:

Description

This PR removes several components and routes related to the original campaign reporting view and refactors the code to use the new reporting view across all campaign formats. It also removes some unused analytics components.

Changes

Changes

• Removes src/components/Collapse/ChangeReportingAlert.tsx which displayed an alert about the updated reporting view
• Removes src/components/Collapse/CollapseBox.tsx which was a collapsible section used in the original reporting view
• Updates src/components/Datagrid/renderers.tsx to remove usage of the CampaignExtras type
• Updates src/routes/campaigns/analytics/CampaignAnalytics.tsx:
  • Removes display of ChangeReportingAlert for non-search campaigns
  • Removes passing of CampaignFormat to determine display
• Updates routes in src/user/User.tsx:
  • Changes /user/main/campaign/:campaignId route to redirect to /user/main/report/:campaignId
  • Removes duplicate /user/main/report/:campaignId route
• Removes src/user/adSet/AdSetList.tsx which displayed the list of ad sets in the original reporting view
• Removes src/user/ads/AdList.tsx which displayed the list of ads in the original reporting view
• Removes several components under src/user/analytics/analyticsOverview/components/* which were used for the original reporting metrics and charts
• Removes src/user/analytics/analyticsOverview/lib/* containing library code for original reporting
• Removes src/user/analytics/analyticsOverview/reports/* containing the original engagement and OS reporting sections
• Removes src/user/analytics/analyticsOverview/types/index.ts containing types for original reporting
• Removes src/user/analytics/renderers/index.tsx containing cell renderers for original reporting stats
• Removes src/user/views/user/AdDetailTable.tsx which was the table component for displaying ad set and ad details
• Removes src/user/views/user/CampaignDetails.tsx which contained tabs for ad set and ad lists
• Updates src/user/views/user/CampaignReportViewSelector.tsx:
  • Removes logic for selecting between original and new reporting view
  • Always displays AnalyticsOverview except for NTP-SI format
• Removes src/user/views/user/reports/OriginalCampaignReportView.tsx which was the top-level component for the original reporting view

Security Hotspots

This PR does not appear to introduce any clear security vulnerabilities. The main changes are removing unused code and consolidating to use the new reporting view.

[tackley]

Nice!