[skip CI] Translate dde-dock.ts in pt

55% of minimum 50% translated source file: 'dde-dock.ts'
on 'pt'.

Sync of partially translated files: 
untranslated content is included with an empty translation 
or source language content depending on file format

plugins/dde-dock/translations/dde-dock_pt.ts

@@ -311,15 +311,15 @@
     </message>
     <message>
         <source>Eye comfort</source>
-        <translation type="unfinished"/>
+        <translation>Conforto Ocular</translation>
     </message>
     <message>
         <source>Theme</source>
-        <translation type="unfinished"/>
+        <translation>Tema</translation>
     </message>
     <message>
         <source>On</source>
-        <translation type="unfinished"/>
+        <translation>Ligado</translation>
     </message>
     <message>
         <source>Off</source>