Context analysis: Co-Occurrence

main/Extensions/SharedState.swift

@@ -25,6 +25,12 @@ enum Pref {
 			set { Pref.Bool(newValue, "didShowTutorialRecordings") }
 		}
 	}
+	enum ContextAnalyis {
+		static var CoOccurrenceTime: Int? {
+			get { Pref.Any("contextAnalyisCoOccurrenceTime") as? Int }
+			set { Pref.Any(newValue, "contextAnalyisCoOccurrenceTime") }
+		}
+	}
 	enum DateFilter {
 		static var Kind: DateFilterKind {
 			get { DateFilterKind(rawValue: Pref.Int("dateFilterType"))! }

main/Extensions/TableView.swift

@@ -43,6 +43,14 @@ extension UITableView {
 	func safeMoveRow(_ from: Int, to: Int) {
 		isFrontmost ? moveRow(at: IndexPath(row: from), to: IndexPath(row: to)) : reloadData()
 	}
+	
+	/// Recalculate and apply new `tableHeaderView` height.
+	func sizeHeaderToFit() {
+		if let head = tableHeaderView {
+			head.frame.size.height = head.systemLayoutSizeFitting(UIView.layoutFittingCompressedSize).height
+			tableHeaderView = head
+		}
+	}
 }