Fix osu!mania scroll speed milliseconds having too much precision

Closes #23750.

Author: peppy

osu.Game.Rulesets.Mania/Configuration/ManiaRulesetConfigManager.cs

@@ -43,7 +43,7 @@ protected override void InitialiseDefaults()
                 speed => new SettingDescription(
                     rawValue: speed,
                     name: RulesetSettingsStrings.ScrollSpeed,
-                    value: RulesetSettingsStrings.ScrollSpeedTooltip(DrawableManiaRuleset.ComputeScrollTime(speed), speed)
+                    value: RulesetSettingsStrings.ScrollSpeedTooltip((int)DrawableManiaRuleset.ComputeScrollTime(speed), speed)
                 )
             )
         };

osu.Game.Rulesets.Mania/ManiaSettingsSubsection.cs

@@ -49,7 +49,7 @@ private void load()
 
         private partial class ManiaScrollSlider : RoundedSliderBar<int>
         {
-            public override LocalisableString TooltipText => RulesetSettingsStrings.ScrollSpeedTooltip(DrawableManiaRuleset.ComputeScrollTime(Current.Value), Current.Value);
+            public override LocalisableString TooltipText => RulesetSettingsStrings.ScrollSpeedTooltip((int)DrawableManiaRuleset.ComputeScrollTime(Current.Value), Current.Value);
         }
     }
 }

osu.Game/Localisation/RulesetSettingsStrings.cs

@@ -82,7 +82,7 @@ public static class RulesetSettingsStrings
         /// <summary>
         /// "{0}ms (speed {1})"
         /// </summary>
-        public static LocalisableString ScrollSpeedTooltip(double scrollTime, int scrollSpeed) => new TranslatableString(getKey(@"ruleset"), @"{0:0}ms (speed {1})", scrollTime, scrollSpeed);
+        public static LocalisableString ScrollSpeedTooltip(int scrollTime, int scrollSpeed) => new TranslatableString(getKey(@"ruleset"), @"{0}ms (speed {1})", scrollTime, scrollSpeed);
 
         private static string getKey(string key) => $@"{prefix}:{key}";
     }