fix: Changed ‘mutationOberver’ to ‘mutationObserver’

src/lib/FastImageSequence.ts

@@ -76,7 +76,7 @@ export class FastImageSequence {
   private animationRequestId: number = 0;
   private container: HTMLElement;
   private resizeObserver: ResizeObserver;
-  private mutationOberver: MutationObserver;
+  private mutationObserver: MutationObserver;
   private clearCanvas: boolean = true;
   private speed: number = 0;
   private prevFrame: number = 0;
@@ -128,7 +128,7 @@ export class FastImageSequence {
       }
     });
 
-    this.mutationOberver = new MutationObserver(() => {
+    this.mutationObserver = new MutationObserver(() => {
       if (!this.container.isConnected) {
         console.error('FastImageSequence: container is not connected to the DOM, fast image sequence will be destroyed');
         this.destruct();
@@ -297,7 +297,7 @@ export class FastImageSequence {
     }
 
     this.resizeObserver.disconnect();
-    this.mutationOberver.disconnect();
+    this.mutationObserver.disconnect();
 
     this.container.removeChild(this.canvas);
     if (this.logElement && !isAddMoreFrames) {
@@ -335,7 +335,7 @@ export class FastImageSequence {
 
     this.container.appendChild(this.canvas);
     this.resizeObserver.observe(this.canvas);
-    this.mutationOberver.observe(this.container, {childList: true});
+    this.mutationObserver.observe(this.container, {childList: true});
 
     // init all frames
     this.frames = Array.from({length: this.options.frames}, (_, index) => new Frame(index));