Open task views in a sheet over the left pane

mac/Sources/Byre/Composer.swift

@@ -357,7 +357,7 @@ struct ComposerView: View {
     @Environment(Store.self) private var store
     @Environment(Overlays.self) private var overlays
     @Environment(\.paneAccent) private var accent
-    @Environment(\.inRightPane) private var inRightPane
+    @Environment(\.inTask) private var inTask
     @ViewState private var text = ""
     @ViewState private var pick: String?
     @ViewState private var shownOverride: Bool?
@@ -531,7 +531,7 @@ struct ComposerView: View {
             }
         }
         .onDisappear {
-            if inRightPane {
+            if inTask {
                 store.paneFocus.setDraft(draftKey, false)
             }
             store.drafts?.flush()
@@ -540,14 +540,14 @@ struct ComposerView: View {
 
     private var editor: some View {
         AgentEditor(text: $text, placeholder: chat.placeholder, key: draftKey, height: 104,
-                    focus: $focused, border: inRightPane ? accent : focused ? Palette.accent : Palette.border,
-                    borderWidth: inRightPane && focused ? 2 : 1) {
+                    focus: $focused, border: inTask ? accent : focused ? Palette.accent : Palette.border,
+                    borderWidth: inTask && focused ? 2 : 1) {
             submit(modelState())
         }
     }
 
     private func reportDraft() {
-        if inRightPane {
+        if inTask {
             store.paneFocus.setDraft(draftKey, !trimmed(text).isEmpty)
         }
     }