fix getting wrong search results from cache (when using different search settings)

main.go

@@ -81,37 +81,36 @@ func handleSearch(w http.ResponseWriter, r *http.Request) {
 		settings.Theme = "dark" // Default theme
 	}
 
-	if safe != "" {
+	if safe != "" && safe != settings.SafeSearch {
 		settings.SafeSearch = safe
 		saveUserSettings(w, settings)
 	}
 
-	if lang != "" {
+	if lang != "" && lang != settings.Language {
 		settings.Language = lang
 		saveUserSettings(w, settings)
 	}
 
-	// Render the search page template if no query
-
-	data := struct {
-		LanguageOptions []LanguageOption
-		CurrentLang     string
-		Theme           string
-		Safe            string
-	}{
-		LanguageOptions: languageOptions,
-		CurrentLang:     settings.Language,
-		Theme:           settings.Theme,
-		Safe:            settings.SafeSearch,
-	}
+	// Check if there is a search query
 	if query == "" {
+		// If no query is provided, render the search page template
+		data := struct {
+			LanguageOptions []LanguageOption
+			CurrentLang     string
+			Theme           string
+			Safe            string
+		}{
+			LanguageOptions: languageOptions,
+			CurrentLang:     settings.Language,
+			Theme:           settings.Theme,
+			Safe:            settings.SafeSearch,
+		}
+
 		tmpl := template.Must(template.ParseFiles("templates/search.html"))
 		tmpl.Execute(w, data)
 		return
 	}
 
-	settings := loadUserSettings(r)
-
 	// Handle search based on the type
 	switch searchType {
 	case "image":