[frontend]: Re-add cluster toggle to Sidepanel

frontend/src/components/Sidebar.jsx

@@ -175,6 +175,15 @@ const Sidebar = ({ selectedSources, setSelectedSources, clusteringEnabled, setCl
                             setEnabledSources={setEnabledSources}
                         />
                     ))}
+                    <div style={{marginTop: "10px", display: "flex", alignItems: "center", gap: "8px"}}>
+                        <input
+                            type="checkbox"
+                            id="toggleClustering"
+                            checked={clusteringEnabled}
+                            onChange={() => setClusteringEnabled(!clusteringEnabled)}
+                        />
+                        <label htmlFor="toggleClustering">Cluster overlapping icons</label>
+                    </div>
                     <button onClick={handleSubmit} style={{marginTop: "10px", color: "white"}}>Submit</button>
                 </div>
             )}