refactor: Refactor code for improved readability and consistency

- Simplified method calls in DfGatewayService and DfListService by reducing line breaks.
- Consolidated variable declarations and assignments in ListService and LxnsBestsService for clarity.
- Streamlined the execution of HTTP mappings in LxnsGatewayService.
- Enhanced formatting and alignment in ConstantMap for better structure.
- Improved the logic flow in ScoreFilterHelper and ScoreProcesserHelper for efficiency.
- Updated Union class for better readability and reduced redundancy in equality checks.
- Ensured consistent use of newlines and formatting across various utility classes.

Author: Yushu2606

src/Prober/Common/ClassRank.cs

@@ -28,4 +28,4 @@ public enum ClassRank
     SSS2,
     SSS1,
     LEGEND
-}
+}

src/Prober/Common/ComboFlags.cs

@@ -18,4 +18,4 @@ public enum ComboFlags
 
     [JsonStringEnumMemberName("app")]
     AllPerfectPlus
-}
+}

src/Prober/Common/CommonChart.cs

@@ -13,4 +13,4 @@ public class CommonChart
     public required double LevelValue { get; init; }
 
     public required Notes Notes { get; init; }
-}
+}

src/Prober/Common/CommonCourseRank.cs

@@ -25,4 +25,4 @@ public enum CommonCourseRank
     Shinjudan,
     Shinkaiden,
     Urakaiden
-}
+}

src/Prober/Common/CommonDifficulties.cs

@@ -8,4 +8,4 @@ public enum CommonDifficulties
     Expert,
     Master,
     ReMaster
-}
+}

src/Prober/Common/CommonRecord.cs

@@ -19,4 +19,4 @@ public record CommonRecord
     public required int DXRating { get; init; }
 
     public float ExtraInfo { get; internal set; }
-}
+}

src/Prober/Common/CommonSong.cs

@@ -15,4 +15,4 @@ public class CommonSong
     public required string AudioUrl { get; init; }
 
     public required string JacketUrl { get; init; }
-}
+}

src/Prober/Common/CommonSongTypes.cs

@@ -5,4 +5,4 @@ public enum CommonSongTypes
     Standard,
     DX,
     Utage
-}
+}

src/Prober/Common/CommonUser.cs

@@ -40,4 +40,4 @@ public record CommonUser
     public string PlateUrl => $"https://assets2.lxns.net/maimai/plate/{PlateId}.png";
 
     public string FrameUrl => $"https://assets2.lxns.net/maimai/frame/{FrameId}.png";
-}
+}

src/Prober/Common/Notes.cs

@@ -21,4 +21,4 @@ public record Notes
 
     [JsonPropertyName("break")]
     public required int Break { get; init; }
-}
+}