fix: keybind docs out of sync

packages/web/src/content/docs/docs/keybinds.mdx

@@ -12,18 +12,24 @@ opencode has a list of keybinds that you can customize through the opencode conf
     "leader": "ctrl+x",
     "app_help": "<leader>h",
     "switch_agent": "tab",
+    "switch_agent_reverse": "shift+tab",
 
     "editor_open": "<leader>e",
 
     "session_new": "<leader>n",
     "session_list": "<leader>l",
     "session_share": "<leader>s",
-    "session_unshare": "<leader>u",
+    "session_unshare": "none",
+    "session_export": "<leader>x",
     "session_interrupt": "esc",
     "session_compact": "<leader>c",
 
     "tool_details": "<leader>d",
+    "thinking_blocks": "<leader>b",
     "model_list": "<leader>m",
+    "agent_list": "<leader>a",
+    "model_cycle_recent": "f2",
+    "model_cycle_recent_reverse": "shift+f2",
     "theme_list": "<leader>t",
     "project_init": "<leader>i",
 
@@ -39,6 +45,8 @@ opencode has a list of keybinds that you can customize through the opencode conf
     "messages_first": "ctrl+g",
     "messages_last": "ctrl+alt+g",
     "messages_copy": "<leader>y",
+    "messages_undo": "<leader>u",
+    "messages_redo": "<leader>r",
 
     "app_exit": "ctrl+c,<leader>q"
   }
@@ -65,7 +73,7 @@ You can disable a keybind by adding the key to your config with a value of "none
 {
   "$schema": "https://opencode.ai/config.json",
   "keybinds": {
-    "session_compact": "none",
+    "session_compact": "none"
   }
 }
 ```