Fix Path A: Resolve function mismatches and missing functions

Fixed template function call mismatches:
- conflicts.templ: Renamed showConflictModal→showResolveModal, hideConflictModal→hideResolveModal, handleResolveConflict→handleResolveSubmit
- collections.templ: Fixed case mismatch addSelectedBooks→addbooksToAdd
- queue.templ: Removed dead /static/queue.js reference
- progress.templ: Removed vestigial x-data="progress" attribute

Added missing queue functions:
- showQueueItemModal() - Shows queue item detail modal
- hideQueueItemModal() - Hides queue item modal
- filterQueue() - Filters queue by status (stubbed)

Fixed build errors:
- main.ts: Removed imports for deleted themeDropdown.ts and woodPaneling.ts files

All fixes are minimal and conservative. No breaking changes to existing functionality.
TypeScript builds successfully (168KB main.js).
Templates regenerate successfully.

templates/progress.templ

@@ -13,7 +13,7 @@ templ Progress(user User, progressData []handlers.ProgressWithMedia, errorMessag
 			<script src="/static/main.js"></script>
 			<link href="/static/style.css" rel="stylesheet"/>
 		</head>
-		<body class="theme-{ user.Theme }" x-data="progress">
+		<body class="theme-{ user.Theme }">
 			@Header(user, "/progress")
 			<div class="w-full px-4 sm:px-6 lg:px-8 py-8">
 				<div class="mb-8">