japanese translation

Co-Authored-By: ysakamoto <1331642+ysakamoto@users.noreply.github.com>

.all-contributorsrc

@@ -301,6 +301,15 @@
       "contributions": [
         "translation"
       ]
+    },
+    {
+      "login": "ysakamoto",
+      "name": "ysakamoto",
+      "avatar_url": "https://avatars3.githubusercontent.com/u/1331642?v=4",
+      "profile": "https://github.com/ysakamoto",
+      "contributions": [
+        "translation"
+      ]
     }
   ],
   "contributorsPerLine": 6,

README.md

@@ -9,7 +9,7 @@
 [![PRs Welcome](https://img.shields.io/badge/PRs-welcome-brightgreen.svg)](http://makeapullrequest.com)
 [![GPLv3 license](https://img.shields.io/badge/License-GPLv3-blue.svg)](./LICENSE)
 [![GitHub stars](https://img.shields.io/github/stars/austinhuang0131/instagrabber.svg?style=social&label=Star)](https://GitHub.com/austinhuang0131/barinsta/stargazers/)<!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->
-[![All Contributors](https://img.shields.io/badge/all_contributors-31-orange.svg)](#contributors)
+[![All Contributors](https://img.shields.io/badge/all_contributors-32-orange.svg)](#contributors)
 <!-- ALL-CONTRIBUTORS-BADGE:END -->
 
 We're previously known as InstaGrabber.
@@ -89,6 +89,7 @@ Prominent contributors are listed here in the [all-contributors](https://allcont
   </tr>
   <tr>
     <td align="center"><a href="https://github.com/wagnim"><img src="https://avatars0.githubusercontent.com/u/30241419?s=100" width="100px;" alt=""/><br /><sub><b>wagnim</b></sub></a><br /><a href="https://crowdin.com/project/instagrabber" title="Translation">🌍</a></td>
+    <td align="center"><a href="https://github.com/ysakamoto"><img src="https://avatars3.githubusercontent.com/u/1331642?v=4?s=100" width="100px;" alt=""/><br /><sub><b>ysakamoto</b></sub></a><br /><a href="https://crowdin.com/project/instagrabber" title="Translation">🌍</a></td>
   </tr>
 </table>
 

app/src/main/java/awais/instagrabber/utils/LocaleUtils.java

@@ -79,6 +79,7 @@ public final class LocaleUtils {
         if (appLanguageIndex == 17) return "hi";
         if (appLanguageIndex == 18) return "nl";
         if (appLanguageIndex == 19) return "sk";
+        if (appLanguageIndex == 20) return "ja";
 
         return null;
     }

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

@@ -21,6 +21,7 @@
         <item translatable="false">हिन्दी</item>
         <item translatable="false">Nederlands [Met dank aan Lesley Natrop]</item>
         <item translatable="false">Slovenčina [Vďaka @CrafterSvK]</item>
+        <item translatable="false">日本語 [協力 ysakamoto]</item>
     </string-array>
     <string-array name="theme_presets">
         <item>Auto / Follow System</item>