Fix lint errors: remove unused imports and params

Author: ammar-agent

src/App.tsx

@@ -1,4 +1,4 @@
-import { useState, useEffect, useCallback, useRef, useMemo } from "react";
+import { useState, useEffect, useCallback, useRef } from "react";
 import styled from "@emotion/styled";
 import { Global, css } from "@emotion/react";
 import { GlobalColors } from "./styles/colors";

src/components/ProjectSidebar.tsx

@@ -2,7 +2,7 @@ import React, { useState, useEffect, useCallback, useRef } from "react";
 import { createPortal } from "react-dom";
 import styled from "@emotion/styled";
 import { css } from "@emotion/react";
-import type { ProjectConfig, Workspace } from "@/config";
+import type { ProjectConfig } from "@/config";
 import type { FrontendWorkspaceMetadata } from "@/types/workspace";
 import { usePersistedState } from "@/hooks/usePersistedState";
 import { DndProvider } from "react-dnd";
@@ -496,7 +496,6 @@ interface ProjectSidebarProps {
 
 const ProjectSidebarInner: React.FC<ProjectSidebarProps> = ({
   projects,
-  workspaceMetadata,
   selectedWorkspace,
   onSelectWorkspace,
   onAddProject,