fix: add Button component import to ContextManagementSettings

Author: daniel-lxs

webview-ui/src/components/settings/ContextManagementSettings.tsx

@@ -5,7 +5,7 @@ import { VSCodeCheckbox } from "@vscode/webview-ui-toolkit/react"
 import { Database, FoldVertical } from "lucide-react"
 
 import { cn } from "@/lib/utils"
-import { Input, Select, SelectContent, SelectItem, SelectTrigger, SelectValue, Slider } from "@/components/ui"
+import { Input, Select, SelectContent, SelectItem, SelectTrigger, SelectValue, Slider, Button } from "@/components/ui"
 
 import { SetCachedStateField } from "./types"
 import { SectionHeader } from "./SectionHeader"