Change Similar manga settings layout (#228)

* convert Credit string to strings_sy element

* remove redundant similar screen title in Similar Manga settings

app/src/main/java/eu/kanade/tachiyomi/ui/setting/SettingsMangaDexController.kt

@@ -100,7 +100,6 @@ class SettingsMangaDexController :
 
             preference {
                 key = "pref_similar_screen"
-                titleRes = R.string.similar_screen
                 summaryRes = R.string.similar_screen_summary_message
                 isIconSpaceReserved = true
             }
@@ -156,7 +155,7 @@ class SettingsMangaDexController :
 
             preference {
                 key = "similar_credits"
-                title = "Credits"
+                titleRes = R.string.similar_credit
                 val url = "https://github.com/goldbattle/MangadexRecomendations"
                 summary = context.getString(R.string.similar_credit_message, url)
                 onClick {

app/src/main/res/values/strings_sy.xml

@@ -624,6 +624,7 @@
         demographics, content type, themes, and then using term frequency–inverse document frequency (tf–idf) to get the
         similarity of two manga\'s descriptions. When enabled this file will download immediately!! The file is about 9 MB in size.
     </string>
+    <string name="similar_credit">Credits</string>
     <string name="similar_credit_message">
         For more information and to view the source code:\n%s
     </string>
@@ -660,5 +661,4 @@
     </plurals>
     <string name="humanize_fallback">moments ago</string>
 
-
 </resources>