bigger rightsidebar by default. also remove ctrl:space keybinding (#670)

assets/default-keybindings.json

@@ -285,10 +285,6 @@
       "keys": ["Ctrl:r"],
       "commandStr": ["/history"]
     },
-    {
-      "command": "cmdinput:openAIChat",
-      "keys": ["Ctrl:Space"]
-    },
     {
       "command": "history:closeHistory",
       "keys": ["Ctrl:g", "Ctrl:c"]

src/app/magiclayout.ts

@@ -26,7 +26,7 @@ let MagicLayout = {
     RightSidebarMaxWidth: 700,
     RightSidebarSnapThreshold: 90,
     RightSidebarDragResistance: 50,
-    RightSidebarDefaultWidth: 240,
+    RightSidebarDefaultWidth: 400,
 };
 
 let m = MagicLayout;