fix: Properly handle promises that lead to hangs on swipes

src/systems/features/chapterCheckpoint.js

@@ -14,6 +14,7 @@ let currentlyHiddenRange = null;
 // Debounce restore to prevent loops
 let isRestoring = false;
 let restoreTimeout = null;
+let pendingResolve = null; // Track pending promise resolve function
 
 /**
  * Gets the current chapter checkpoint message ID for the active chat
@@ -129,13 +130,19 @@ export async function restoreCheckpointOnLoad() {
         return;
     }
 
-    // Clear any pending timeout
+    // Clear any pending timeout and resolve the pending promise
     if (restoreTimeout) {
         clearTimeout(restoreTimeout);
+        restoreTimeout = null;
+    }
+    if (pendingResolve) {
+        pendingResolve();
+        pendingResolve = null;
     }
 
     // Debounce: wait 100ms before actually restoring
     return new Promise((resolve) => {
+        pendingResolve = resolve; // Track this promise's resolve function
         restoreTimeout = setTimeout(async () => {
             isRestoring = true;
             try {
@@ -174,6 +181,7 @@ export async function restoreCheckpointOnLoad() {
                 }
             } finally {
                 isRestoring = false;
+                pendingResolve = null;
                 resolve();
             }
         }, 100);