Fix quoted posts not displaying on macOS (#2469)

[SameerNadaf]

Fixes #2469

Problem

A post that quotes another post does not display the quoted content on macOS (Mac Catalyst), even when Show Quotes is enabled in Content Settings. The same post correctly shows the quoted content on iPhone.

Affected version: 2.1.3 (3244)
Platform: macOS only (iOS works correctly)

Root Cause

The issue is in StatusRowContentView.swift, where StatusEmbeddedView (the quoted post widget) had .fixedSize(horizontal: false, vertical: true) applied unconditionally on all platforms.

StatusEmbeddedView has this layout structure:

HStack {
    VStack {
        makeAccountView(...)   // author header
        StatusRowView(...)     // quoted post body
    }
    Spacer()                   // ← the culprit
}

The Spacer() inside the HStack triggers a SwiftUI layout conflict when .fixedSize(horizontal: false, vertical: true) is applied:

1. SwiftUI asks the HStack for its ideal height assuming infinite width
2. With infinite width, Spacer() collapses to 0, so text renders as a single line
3. That tiny single-line height is then permanently "fixed" by the modifier
4. At actual rendering width (where text wraps to multiple lines), the container stays pinned to the collapsed height → invisible quoted post

Why it works on iOS but not on macOS:
On iOS, UIKit's UITableView-backed List absorbs or avoids this measurement conflict. On macOS Catalyst's NSTableView-backed List, the layout engine applies stricter size measurement semantics that expose the conflict directly.

Fix

Wrap the .fixedSize(horizontal: false, vertical: true) modifier in a compile-time #if !targetEnvironment(macCatalyst) guard, so it is only applied on iOS/visionOS where it is needed:

StatusEmbeddedView(
    status: embeddedStatus,
    client: viewModel.client,
    routerPath: viewModel.routerPath
)
#if !targetEnvironment(macCatalyst)
.fixedSize(horizontal: false, vertical: true)
#endif
.transition(.opacity)

This is applied to both branches in the block — the loaded status and the .redacted placeholder shown while loading — to prevent a height jump/pop-in during the loading state.

Verification

No side effects:

Concern	Result
iOS behavior	✅ Unchanged — #if is compile-time; iOS code path is identical
visionOS behavior	✅ Unchanged — separate os(visionOS) blocks are unaffected
Quote fetching on Mac	✅ Still works — fetching is triggered in StatusRowView.onAppear, independent of this modifier
Infinite nesting guard	✅ Still intact — !isCompact check prevents recursive embedding
Notification tab quotes	✅ Unaffected — NotificationRowContentView had no fixedSize on its StatusEmbeddedView
Account Metrics "Top posts"	✅ Unaffected — uses StatusEmbeddedView in a ScrollView, not a List
"Show Quotes" content filter	✅ Unaffected — filtering happens in TimelineDatasource before rendering
Placeholder loading state	✅ Both branches (real + placeholder) guarded, no layout jump

Pattern consistency:
#if targetEnvironment(macCatalyst) guards are used 30+ times throughout StatusKit following this exact same pattern (e.g. StatusRowCardView, StatusRowContextMenu, StatusRowActionsView). This fix follows the established convention.

Files Changed

• Packages/StatusKit/Sources/StatusKit/Row/Subviews/StatusRowContentView.swift — Added #if !targetEnvironment(macCatalyst) compile guard around .fixedSize on StatusEmbeddedView (4 lines added)