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.go

@@ -31,7 +31,7 @@ func Progress(user User, progressData []handlers.ProgressWithMedia, errorMessage
 			templ_7745c5c3_Var1 = templ.NopComponent
 		}
 		ctx = templ.ClearChildren(ctx)
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 1, "<!doctype html><html lang=\"en\"><head><meta charset=\"UTF-8\"><meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"><title>Reading Progress - Bookhoard</title><script src=\"/static/htmx.min.js\"></script><script src=\"/static/main.js\"></script><link href=\"/static/style.css\" rel=\"stylesheet\"></head><body class=\"theme-{ user.Theme }\" x-data=\"progress\">")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 1, "<!doctype html><html lang=\"en\"><head><meta charset=\"UTF-8\"><meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"><title>Reading Progress - Bookhoard</title><script src=\"/static/htmx.min.js\"></script><script src=\"/static/main.js\"></script><link href=\"/static/style.css\" rel=\"stylesheet\"></head><body class=\"theme-{ user.Theme }\">")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}