feat: add support for Lao language in deepin-diskmanager (#172)

- Added Lao translations for application names and generic names in the deepin-diskmanager.desktop file.
- Updated translation files to include new entries for the "Unallocated" status in various languages.

This enhancement improves accessibility for Lao-speaking users, ensuring a more inclusive user experience.

Author: dengzhongyuan365-dev

application/assets/deepin-diskmanager.desktop

@@ -27,6 +27,7 @@ GenericName[id]=Utilitas Diska
 GenericName[it]=Gestore Dischi
 GenericName[ja]=ディスク ユーティリティ
 GenericName[ko]=디스크 유틸리티
+GenericName[lo]=ເຄື່ອງມືຈັດການດິສ
 GenericName[ms]=Utiliti Cakera
 GenericName[nl]=Schijfhulpprogramma
 GenericName[pl]=Narzędzie dyskowe
@@ -59,6 +60,7 @@ Name[id]=Utilitas Diska Deepin
 Name[it]=Gestore Dischi di Deepin
 Name[ja]=Deepin ディスク ユーティリティ
 Name[ko]=Deepin 디스크 유틸리티
+Name[lo]=ເຄື່ອງມືຈັດການດິສ
 Name[ms]=Utiliti Cakera Deepin
 Name[nl]=Deepin Schijfhulpprogramma
 Name[pl]=Narzędzie dyskowe Deepin