Changed line break behaviour. (commons-app#5562)

Added line breaks to PageContentsCreator.java, CategoryEditHelperUnitTests.kt, and MediaDetailFragmentUnitTests.kt following the example given on issue commons-app#5523.

Author: ivanacha

app/src/main/java/fr/free/nrw/commons/upload/PageContentsCreator.java

@@ -44,7 +44,6 @@ public String createFrom(final Contribution contribution) {
                 .append("}}");
         }
         buffer
-            .append("\n")
             .append("|source=").append("{{own}}\n")
             .append("|author=[[User:").append(media.getAuthor()).append("|")
             .append(media.getAuthor()).append("]]\n");
@@ -68,7 +67,9 @@ public String createFrom(final Contribution contribution) {
                 Utils.getWikiLovesMonumentsYear(Calendar.getInstance()), contribution.getCountryCode()));
         }
 
-        buffer.append("== {{int:license-header}} ==\n")
+        buffer
+            .append("\n")
+            .append("== {{int:license-header}} ==\n")
             .append(licenseTemplateFor(media.getLicense())).append("\n\n")
             .append("{{Uploaded from Mobile|platform=Android|version=")
             .append(ConfigUtils.getVersionNameWithSha(context)).append("}}\n");

app/src/test/kotlin/fr/free/nrw/commons/category/CategoryEditHelperUnitTests.kt

@@ -87,12 +87,12 @@ class CategoryEditHelperUnitTests {
         helper.makeCategoryEdit(context, media, listOf("Test"), "== {{int:filedesc}} ==\n" +
                 "{{Information\n" +
                 "|description=\n" +
-                "\n" +
                 "|source={{own}}\n" +
                 "|author=[[User:UserForthBeta|UserForthBeta]]\n" +
                 "|date={{According to Exif data|2022-03-06}}\n" +
                 "}}\n" +
                 "{{Location|22.538830555555556|114.08847222222222}}\n" +
+                "\n" +
                 "== {{int:license-header}} ==\n" +
                 "{{self|cc-zero}}\n" +
                 "\n" +

app/src/test/kotlin/fr/free/nrw/commons/media/MediaDetailFragmentUnitTests.kt

@@ -383,7 +383,7 @@ class MediaDetailFragmentUnitTests {
                 "|other versions=\n" +
                 "}}\n" +
                 "{{Location|27.043186|88.267003}}\n" +
-                "{{Assessments|featured=1}}"
+                "{{Assessments|featured=1}}\n"
         val map = linkedMapOf("en" to "Antique cash register in a cafe, Darjeeling")
         Assert.assertEquals(map, method.invoke(fragment, s))
     }
@@ -429,7 +429,7 @@ class MediaDetailFragmentUnitTests {
                 "|Other fields = {{Credit line |Author = © [[User:Colin]] | Other = Wikimedia Commons |License = CC-BY-SA-4.0}}\n" +
                 "}}\n" +
                 "{{Location|51.519003|-0.138353}}\n" +
-                "{{Assessments|featured=1}}"
+                "{{Assessments|featured=1}}\n"
         val map = linkedMapOf("en" to "[[:en:Fitzrovia Chapel|Fitzrovia Chapel]] ceiling<br/>\n")
         Assert.assertEquals(map, method.invoke(fragment, s))
     }
@@ -487,7 +487,7 @@ class MediaDetailFragmentUnitTests {
                 "|Date          =2015-02-17\n" +
                 "|Permission    ={{Diliff/Licensing}}\n" +
                 "|other_versions=\n" +
-                "}}"
+                "}}\n"
         val map = linkedMapOf("en" to "The interior of Sacred Heart RC Church, Wimbledon, London.")
         Assert.assertEquals(map, method.invoke(fragment, s))
     }