fix: correct history_next keybinding description (anomalyco#3891)

Author: frankdierolf

packages/opencode/src/config/config.ts

@@ -473,7 +473,7 @@ export namespace Config {
         .default("shift+return,ctrl+j")
         .describe("Insert newline in input"),
       history_previous: z.string().optional().default("up").describe("Previous history item"),
-      history_next: z.string().optional().default("down").describe("Previous history item"),
+      history_next: z.string().optional().default("down").describe("Next history item"),
       session_child_cycle: z
         .string()
         .optional()