i18n: Updates for project Deepin Desktop Environment (#148)

* i18n: Translate update_en.ts in pt_BR

100% translated source file: 'update_en.ts'
on 'pt_BR'.

* i18n: Translate update_en.ts in lo

99% of minimum 50% translated source file: 'update_en.ts'
on 'lo'.

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

* i18n: Translate dde-update_en.ts in lo

100% translated source file: 'dde-update_en.ts'
on 'lo'.

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Log:

Author: transifex-integration[bot]