Add reset button for edge size

lightrag_webui/src/components/graph/Settings.tsx

@@ -313,6 +313,7 @@ export default function Settings() {
                   max={Math.min(maxEdgeSize, 10)}
                 />
                 <span>-</span>
+                <div className="flex items-center gap-1">
                   <Input
                     type="number"
                     value={maxEdgeSize}
@@ -326,6 +327,17 @@ export default function Settings() {
                     min={minEdgeSize}
                     max={10}
                   />
+                  <Button
+                    variant="ghost"
+                    size="icon"
+                    className="h-6 w-6 flex-shrink-0 hover:bg-muted text-muted-foreground hover:text-foreground"
+                    onClick={() => useSettingsStore.setState({ minEdgeSize: 1, maxEdgeSize: 5 })}
+                    type="button"
+                    title={t('graphPanel.sideBar.settings.resetToDefault')}
+                  >
+                    <Undo2 className="h-3.5 w-3.5" />
+                  </Button>
+                </div>
               </div>
             </div>