style(geometry): remove trailing spaces and fix newlines in RotatingCalipers

Fix Checkstyle violations by removing trailing whitespace and ensuring proper file endings in the RotatingCalipers class and test files.

Author: motalib-code

src/main/java/com/thealgorithms/geometry/RotatingCalipers.java

@@ -69,7 +69,7 @@ public String toString() {
             return String.format("Rectangle{area=%.2f}", area);
         }
     }
-    
+
     /**
      * Computes the diameter of a convex polygon using rotating calipers.
      * The diameter is the maximum distance between any two vertices.
@@ -101,7 +101,7 @@ public static PointPair diameter(List<Point> convexHull) {
 
         return maxPair;
     }
-    
+
     /**
      * Computes the width of a convex polygon using rotating calipers.
      * The width is the minimum distance between two parallel supporting lines.
@@ -139,7 +139,7 @@ public static double width(List<Point> convexHull) {
 
         return minWidth;
     }
-    
+
     /**
      * Computes the minimum-area bounding rectangle of a convex polygon.
      *
@@ -171,7 +171,7 @@ public static Rectangle minimumBoundingRectangle(List<Point> convexHull) {
 
         return minRect;
     }
-    
+
     /**
      * Creates a rectangle aligned with the given edge that encloses all points.
      */

src/test/java/com/thealgorithms/geometry/RotatingCalipersTest.java

@@ -187,4 +187,5 @@ void testDegenerateCase() {
         RotatingCalipers.Rectangle rect = RotatingCalipers.minimumBoundingRectangle(samePoints);
         assertEquals(0.0, rect.area, EPSILON);
     }
-}
+}
+