Fix sidebar actions and dashboard chart clipping

[ejsmith]

Summary

• place the saved-view reorder action to the left of the expand/collapse control
• render Events, Stacks, and Sessions dashboard series as overlapping areas
• prevent LayerChart's automatic multi-series stacking from drawing the second series beyond the chart's Y domain

Verification

• npm run validate
• reproduced the Events and Stacks chart line extending 16 px above the plot area with the automatic series layout
• verified 0 px top overflow for Events, Stacks, and Sessions with the overlapping series layout
• verified the local Svelte app and /api/v2/about return HTTP 200 through the Aspire frontend endpoint

Breaking changes

None.

[chatgpt-codex-connector]

Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-09-03T20:02:52.151709Z	5e0fd7a	PR opened

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[github-actions]

Package	Line Rate	Branch Rate	Complexity	Health
Exceptionless.Insulation	37%	35%	286	❌
Exceptionless.Core	76%	68%	10418	✔
Exceptionless.Web	85%	70%	8081	✔
Exceptionless.AppHost	38%	41%	147	❌
Summary	79% (26056 / 33034)	68% (12158 / 17921)	18932	✔