Improve train search sorting

train.js

@@ -30,14 +30,28 @@ function rebuildSuggestions() {
 	var trainNumber = trainNumberInput.value.trim()
 
 	var suggestions = []
+	if (!trainNumber) {
+		suggestions = knownTrains.slice()
+	}
+	else {
 		for (var i = 0; i < knownTrains.length; i++) {
-		if (trainNumber) {
 			if (!knownTrains[i].number.includes(trainNumber)) {
 				continue
 			}
-		}
 			suggestions.push(knownTrains[i])
 		}
+		suggestions.sort((s1, s2) => {
+			if (s1.number.indexOf(trainNumber) != s2.number.indexOf(trainNumber)) {
+				return s1.number.indexOf(trainNumber) - s2.number.indexOf(trainNumber);
+			}
+
+			if (s1.number.length != s2.number.length) {
+				return s1.number.length - s2.number.length;
+			}
+
+			return s1.number.localeCompare(s2.number);
+		})
+	}
 
 	suggestions.forEach(function (suggestion, index) {
 		var suggestionLi = document.createElement('li')