fix(lea): change 'Mark remaining' button label to 'Mark as read'

- Update button text in src/modules/lea/documents.js to 'Mark as read'
- Rebuild distribution files and update hot-update file names and hashes
- Ensure category and toolbar controls display the updated label

Author: EvanNotFound

dist/main.dc02fafc9477fa210796.hot-update.json

@@ -230,7 +230,7 @@ export function optimizeCourseDocuments() {
 				readAllButton.textContent =
 					unreadCount === docEntries.length
 						? `Mark all read (${unreadCount})`
-						: `Mark remaining (${unreadCount})`;
+						: `Mark as read (${unreadCount})`;
 			};
 
 			readAllButton.addEventListener("click", async () => {