Improve image thumbnails and files table

app/Locale/ja_JP/translations.php

@@ -598,8 +598,6 @@ return array(
     'Compact/wide view' => 'コンパクト／ワイドビュー',
     'No results match:' => '結果が一致しませんでした',
     'Currency' => '通貨',
-    'Files' => 'ファイル',
-    'Images' => '画像',
     'Private project' => 'プライベートプロジェクト',
     'AUD - Australian Dollar' => 'AUD - 豪ドル',
     'CAD - Canadian Dollar' => 'CAD - 加ドル',
@@ -645,9 +643,6 @@ return array(
     'Test your device' => 'デバイスをテストする',
     // 'Assign a color when the task is moved to a specific column' => '',
     // '%s via Kanboard' => '',
-    // 'uploaded by: %s' => '',
-    // 'uploaded on: %s' => '',
-    // 'size: %s' => '',
     // 'Burndown chart for "%s"' => '',
     // 'Burndown chart' => '',
     // 'This chart show the task complexity over the time (Work Remaining).' => '',
@@ -1137,4 +1132,10 @@ return array(
     // 'Do you really want to disable this user: "%s"?' => '',
     // 'Enable user' => '',
     // 'Do you really want to enable this user: "%s"?' => '',
+    // 'Download' => '',
+    // 'Uploaded: %s' => '',
+    // 'Size: %s' => '',
+    // 'Uploaded by %s' => '',
+    // 'Filename' => '',
+    // 'Size' => '',
 );