en to km translation catalogue (3 entries)

[ctx: Label for the Cancel button.]
en: Cancel
km: បោះបង់

[ctx: Label for the Save button.]
en: Save
km: រក្សាទុ

[ctx: A generic error message displayed on upload failure. The file name is concatenated to this text.]
en: Cannot upload file:
km: មិនអាច​អាប់ឡូត​ឯកសារ៖
