Fire event on document instead of window

"location-change" was being fired on window but listened on [1]
document hence the handler was never called resulting in toasts
not dismissing upon navigation.

Fire and listen always on document.

[1] https://cs.opensource.google/gerrit/gerrit/gerrit/+/master:polygerrit-ui/app/elements/core/gr-error-manager/gr-error-manager.ts;l=346?q=%22document.addEventListener(%27location-change%22

Release-Notes: skip
Google-bug-id: b/243520983
Change-Id: I9918c4e8dd83326738beefe81e15d514c3cf9a64
diff --git a/polygerrit-ui/app/elements/core/gr-account-dropdown/gr-account-dropdown.ts b/polygerrit-ui/app/elements/core/gr-account-dropdown/gr-account-dropdown.ts
index b21ef61..b46d2b9 100644
--- a/polygerrit-ui/app/elements/core/gr-account-dropdown/gr-account-dropdown.ts
+++ b/polygerrit-ui/app/elements/core/gr-account-dropdown/gr-account-dropdown.ts
@@ -47,7 +47,7 @@
   override connectedCallback() {
     super.connectedCallback();
     this.handleLocationChange();
-    window.addEventListener('location-change', this.handleLocationChange);
+    document.addEventListener('location-change', this.handleLocationChange);
     this.restApiService.getConfig().then(cfg => {
       this.config = cfg;
 
@@ -61,7 +61,7 @@
   }
 
   override disconnectedCallback() {
-    window.removeEventListener('location-change', this.handleLocationChange);
+    document.removeEventListener('location-change', this.handleLocationChange);
     super.disconnectedCallback();
   }
 
diff --git a/polygerrit-ui/app/elements/core/gr-router/gr-router.ts b/polygerrit-ui/app/elements/core/gr-router/gr-router.ts
index 71d3cc0..360eaa3 100644
--- a/polygerrit-ui/app/elements/core/gr-router/gr-router.ts
+++ b/polygerrit-ui/app/elements/core/gr-router/gr-router.ts
@@ -627,7 +627,7 @@
           hash: window.location.hash,
           pathname: window.location.pathname,
         };
-        window.dispatchEvent(
+        document.dispatchEvent(
           new CustomEvent('location-change', {
             detail,
             composed: true,
diff --git a/polygerrit-ui/app/elements/settings/gr-settings-view/gr-settings-view.ts b/polygerrit-ui/app/elements/settings/gr-settings-view/gr-settings-view.ts
index 0dc7d2a..801bb63 100644
--- a/polygerrit-ui/app/elements/settings/gr-settings-view/gr-settings-view.ts
+++ b/polygerrit-ui/app/elements/settings/gr-settings-view/gr-settings-view.ts
@@ -198,7 +198,7 @@
     super.connectedCallback();
     // Polymer 2: anchor tag won't work on shadow DOM
     // we need to manually calling scrollIntoView when hash changed
-    window.addEventListener('location-change', this.handleLocationChange);
+    document.addEventListener('location-change', this.handleLocationChange);
     fireTitleChange(this, 'Settings');
   }
 
@@ -721,7 +721,7 @@
   }
 
   override disconnectedCallback() {
-    window.removeEventListener('location-change', this.handleLocationChange);
+    document.removeEventListener('location-change', this.handleLocationChange);
     super.disconnectedCallback();
   }