fix(更新图标): 修复首次更新按钮失效

assets/webui/ofdgo.css

@@ -570,8 +570,6 @@ a:focus-visible {
 
 .app-update {
 	margin-left: var(--tab-action-gap);
-	margin-right: -6px;
-	color: var(--accent-strong);
 }
 
 .app-update[hidden] {
@@ -4348,10 +4346,6 @@ audio.page-media {
 		--bar-pad: 5px 8px;
 	}
 
-	.app-update {
-		margin-right: -8px;
-	}
-
 	.workspace {
 		grid-template-columns: 1fr;
 	}

assets/webui/ofdgo.js

@@ -5153,7 +5153,11 @@ function watchApplicationUpdates(checksum) {
 			}
 			const latest = nativeHost ? await nativeHost.call("update.check", {}) : await applicationChecksum("./", { method: "HEAD", cache: "no-store" });
 			if (nativeHost) {
-				el.refreshAppButton.hidden = !latest;
+				const hidden = !latest;
+				if (el.refreshAppButton.hidden !== hidden) {
+					el.refreshAppButton.hidden = hidden;
+					updateTitleBarRegions();
+				}
 			} else if (latest) {
 				el.refreshAppButton.hidden = latest === checksum;
 			}