Vansh QA updates

tests/edu/caltech/cs2/project01/CaesarCipherSolverTests.java

         @Order(sanityTestLevel + 7)
         @ParameterizedTest
         @DisplayName("Test main()")
+        @TestHint("Decrypted sentences should be printed out with newlines")
         @TestDescription("This test runs the main function to ensure your CaesarCipherSolver works as intended.")
         @DependsOn({"rot", "splitBySpaces", "putTogetherWithSpaces", "howManyWordsIn"})
         @MethodSource("mainArgumentsStream")