test: support NBSP and empty space for testing

.replace("\u00a0"," ");

Author: jy95

common/src/test/java/io/github/jy95/fds/translators/AbstractOffsetWhenTest.java

@@ -51,7 +51,7 @@ private String getExpectedText1(Locale locale) {
     void testWithWhenAndCount(Locale locale) throws ExecutionException, InterruptedException {
         var dosage = generateWithWhenAndCount();
         var dosageUtils = getDosageAPI(locale, DisplayOrder.OFFSET_WHEN);
-        String result = dosageUtils.asHumanReadableText(dosage).get();
+        String result = dosageUtils.asHumanReadableText(dosage).get().replace("\u00a0"," ");;
         String expectedResult = getExpectedText2(locale);
         assertEquals(expectedResult, result);
     }