update language for Bahasa Indonesia (#283)

Hi, 
I think the use of Indonesian language is less precise in some parts of translation. Therefore, I recommend for some parts as I have applied in my blog https://indrakusuma.web.id/
Thanks :)

languages/id.yml

@@ -1,19 +1,19 @@
 index:
-    home: 'home'
+    home: 'Beranda'
     search: 'Cari'
-    archive: 'arsip'
-    category: 'kategori'
-    uncategorized: 'tanpa kategori'
+    archive: 'Arsip'
+    category: 'Kategori'
+    uncategorized: 'Tanpa Kategori'
     tag: 'tag'
 nav:
     next: 'Berikutnya'
     prev: 'Sebelumnya'
-    older: 'Lebih Tua'
+    older: 'Lebih lama'
     newer: 'Lebih baru'
 widget:
-    recents: 'terbaru'
-    archives: 'arsip'
-    categories: 'kategori'
+    recents: 'Terbaru'
+    archives: 'Arsip'
+    categories: 'Kategori'
     links: 'tautan'
     tags: 'tag'
     tag_cloud: 'awan tag'
@@ -27,9 +27,9 @@ profile:
     posts: 'pos'
     tags: 'tag'
 insight:
-    hint: 'Type something...'
-    posts: 'pos'
-    pages: 'Pages'
-    categories: 'kategori'
-    tags: 'tag'
-    untitled: '(Untitled)'
+    hint: 'Tulis Sesuatu..'
+    posts: 'Pos'
+    pages: 'Halaman'
+    categories: 'Kategori'
+    tags: 'Tag'
+    untitled: 'Tanpa Judul'