Fixed typo, made mod select take focus when visible

osu.Game/Modes/Mod.cs

@@ -137,7 +137,7 @@ namespace osu.Game.Modes
             switch (mode)
             {
                 case PlayMode.Osu:
-                    return "You don't need to click. \nGive your clicking/tapping finger a break from the heat of things.";
+                    return "You don't need to click.\nGive your clicking/tapping finger a break from the heat of things.";
                     
                 case PlayMode.Taiko:
                     return @"Relax! You will no longer get dizzyfied by ninja-like spinners, demanding drumrolls or unexpected katu's.";

osu.Game/Overlays/Mods/ModSelectOverlay.cs

@@ -15,6 +15,9 @@ using osu.Game.Graphics.Backgrounds;
 using osu.Game.Graphics.Sprites;
 using osu.Game.Modes;
 using osu.Framework.Allocation;
+using osu.Framework.Input;
+using OpenTK.Input;
+using System.Linq;
 
 namespace osu.Game.Overlays.Mods
 {
@@ -84,6 +87,28 @@ namespace osu.Game.Overlays.Mods
             }
         }
 
+        public override bool RequestingFocus => State == Visibility.Visible;
+
+        protected override bool OnFocus(InputState state) => true;
+        protected override void OnFocusLost(InputState state)
+        {
+            if (state.Keyboard.Keys.Contains(Key.Escape))
+                Hide();
+            base.OnFocusLost(state);
+        }
+
+        protected override void PopIn()
+        {
+            base.PopIn();
+            Schedule(TriggerFocusContention);
+        }
+
+        protected override void PopOut()
+        {
+            base.PopOut();
+            TriggerFocusLost();
+        }
+
         protected override void TransitionIn()
         {
             rankedMultiplerContainer.MoveToX(0, ranked_multiplier_duration, EasingTypes.OutQuint);