checking lint issue

Signed-off-by: JeevaRamanathan <jeevaramanathan.m@infosys.com>

Author: JeevaRamanathan

src/main/java/com/thealgorithms/strings/Isogram.java

@@ -80,4 +80,4 @@ public static boolean isIsogramByLength(String str) {
         }
         return uniqueChars.size() == str.length();
     }
- }
+  }

src/test/java/com/thealgorithms/strings/IsogramTest.java

@@ -21,7 +21,7 @@ private static Stream<IsogramTestCase> isogramArrayTestData() {
             // Not isograms - letters repeat
             new IsogramTestCase("hello", false), new IsogramTestCase("programming", false), new IsogramTestCase("java", false), new IsogramTestCase("coffee", false), new IsogramTestCase("book", false), new IsogramTestCase("letter", false), new IsogramTestCase("mississippi", false),
             new IsogramTestCase("google", false),
- 
+
             // Edge cases
             new IsogramTestCase("", true), new IsogramTestCase("a", true), new IsogramTestCase("ab", true), new IsogramTestCase("abc", true), new IsogramTestCase("aa", false), new IsogramTestCase("abcdefghijklmnopqrstuvwxyz", true),
 
@@ -38,7 +38,7 @@ private static Stream<IsogramTestCase> isogramLengthTestData() {
             // Not isograms - characters repeat
             new IsogramTestCase("hello", false), new IsogramTestCase("programming", false), new IsogramTestCase("java", false), new IsogramTestCase("coffee", false), new IsogramTestCase("book", false), new IsogramTestCase("letter", false), new IsogramTestCase("mississippi", false),
             new IsogramTestCase("google", false),
- 
+
             // Edge cases
             new IsogramTestCase("", true), new IsogramTestCase("a", true), new IsogramTestCase("ab", true), new IsogramTestCase("abc", true), new IsogramTestCase("aa", false), new IsogramTestCase("abcdefghijklmnopqrstuvwxyz", true),