add transform + few fixes

feat: transform
feat: batch command
fix: slider undo
fix: timeline zoom perf
refactor: make updateElement support multiple

apps/web/src/lib/commands/batch-command.ts

@@ -0,0 +1,25 @@
+import { Command } from "./base-command";
+
+export class BatchCommand extends Command {
+	constructor(private commands: Command[]) {
+		super();
+	}
+
+	execute(): void {
+		for (const command of this.commands) {
+			command.execute();
+		}
+	}
+
+	undo(): void {
+		for (const command of [...this.commands].reverse()) {
+			command.undo();
+		}
+	}
+
+	redo(): void {
+		for (const command of this.commands) {
+			command.execute();
+		}
+	}
+}

apps/web/src/lib/commands/index.ts

@@ -1,4 +1,5 @@
 export { Command } from "./base-command";
+export { BatchCommand } from "./batch-command";
 
 export * from "./timeline";
 export * from "./media";