feat: player disable tracking and cookies reactive (muxinc#1214)

Resolves [1193](muxinc#1193) by
adding two new cases in the `attributeChangedCallback` of the base of
the player:

1. **DISABLE_TRACKING**: Reloads the player when this attribute changes,
since tracking must be disabled on initialization (keeping the
currentTime and playbackState).
2. **DISABLE_COOKIES**: Deletes the tracking cookie if the attribute is
changed after initialization.

These changes allow the user disable this tracking props on the run
without breaking he experience of playing the video.

Author: ronalduQualabs

packages/mux-video/src/base.ts

@@ -857,6 +857,35 @@ export class MuxVideoBaseElement extends CustomVideoElement implements IMuxVideo
           this.updateLogo();
         }
         break;
+      case Attributes.DISABLE_TRACKING: {
+        if (newValue == null || newValue !== oldValue) {
+          const currentTime = this.currentTime;
+          const paused = this.paused;
+          this.unload();
+          this.#requestLoad().then(() => {
+            this.currentTime = currentTime;
+            if (!paused) {
+              this.play();
+            }
+          });
+        }
+        break;
+      }
+      case Attributes.DISABLE_COOKIES: {
+        if (newValue == null || newValue !== oldValue) {
+          const disabled = this.disableCookies;
+          if (disabled) {
+            document.cookie.split(';').forEach((c) => {
+              if (c.trim().startsWith('muxData')) {
+                document.cookie = c
+                  .replace(/^ +/, '')
+                  .replace(/=.*/, '=;expires=' + new Date().toUTCString() + ';path=/');
+              }
+            });
+          }
+        }
+        break;
+      }
     }
   }