Added docs (and observations) to notes count.

packages/frontend/src/account.ts

@@ -56,13 +56,32 @@ export function signinRequired() {
 	return $i;
 }
 
+/**
+ * Extracts the current number of notes from the current account.
+ *
+ * Note: This appears to only be used for the "notes1" achievement.
+ *
+ * Also, separating it like this might cause counts to get out-of-sync.
+ */
 export let notesCount = $i == null ? 0 : $i.notesCount;
+
+/**
+ * Increments the number of notes by one.
+ *
+ * Documentation TODO: What about $i.notesCount? Why not increment that?
+ */
 export function incNotesCount() {
 	notesCount++;
 }
 
 export async function signout() {
-	if (!$i) return;
+
+	// If we're not signed in, there's nothing to do.
+	if (!$i) {
+		// Error log:
+		console.error('signout() called when not signed in');
+		return;
+	}
 
 	waiting();
 	miLocalStorage.removeItem('account');