Upgrade to bunit v2.3.4 from 1.40.0

[Copilot]

Upgrades the bunit testing framework from v1.40.0 to v2.3.4 to leverage latest features and fixes.

Changes

• Package: Updated bunit from 1.40.0 to 2.3.4
• Base class: TestContext → BunitContext in JaTestContext.cs
• Rendering API: RenderComponent<T>() → Render<T>() across all component tests
• Disposal:
  • Removed DisposeComponents() (no longer available in v2)
  • Added async disposal chain in JaTestContext.DisposeAsync() via await base.DisposeAsync()
  • Fixed SafetyPlanTests.PlanPersists to explicitly save component state before disposal

Example

// Before (bunit v1)
public abstract class JaTestContext : TestContext, IAsyncLifetime
{
    var cut = RenderComponent<SafetyPlanPage>();
    DisposeComponents();
}

// After (bunit v2)
public abstract class JaTestContext : BunitContext, IAsyncLifetime
{
    var cut = Render<SafetyPlanPage>();
    cut.Dispose();
    await base.DisposeAsync();
}

All 171 tests pass.

Original prompt

Upgrade to bunit v2

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[danielchalmers]

I don't like parts of the implementation