feat: Update translations for Lao locale

[JWWTSL]

log: Translation update

Summary by Sourcery

Add comprehensive Lao (lo) translations for the application UI and desktop entry

Enhancements:

• Introduce Lao locale translation file for the main Deepin Draw UI
• Add Lao translation for the desktop entry metadata

[github-actions]

TAG Bot

TAG: 6.5.25
EXISTED: yes
DISTRIBUTION: unstable

[sourcery-ai]

Reviewer's Guide

This PR introduces Lao locale support by adding two new Qt translation files for the main application and desktop entry, and records the localization update in the Debian changelog.

File-Level Changes

Change	Details	Files
Record translation update in changelog	Add entry for Lao translation update	debian/changelog
Add main application Lao translations	Create deepin-draw_lo.ts with translations for UI strings across all contexts	translations/deepin-draw_lo.ts
Add desktop entry Lao translations	Create desktop_lo.ts with localized desktop entry Name, Comment and GenericName	translations/desktop/desktop_lo.ts

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[sourcery-ai]

Hey @JWWTSL - I've reviewed your changes - here's some feedback:

• Update the TS header to set language="lo" and sourcelanguage="en" to correctly configure the Lao translation file.
• Double-check that all placeholder tokens (e.g. %1) and newline markers match the source strings exactly to avoid runtime formatting issues.
• Review the attributes in desktop_lo.ts to ensure the desktop entry keys (Name, Comment, GenericName) are correctly referenced.

Prompt for AI Agents

Please address the comments from this code review:
## Overall Comments
- Update the TS header to set language="lo" and sourcelanguage="en" to correctly configure the Lao translation file.
- Double-check that all placeholder tokens (e.g. %1) and newline markers match the source strings exactly to avoid runtime formatting issues.
- Review the <location> attributes in desktop_lo.ts to ensure the desktop entry keys (Name, Comment, GenericName) are correctly referenced.

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[deepin-ci-robot]

deepin pr auto review

代码审查意见：

1. 在translations/deepin-draw_lo.ts文件中，<TS version="2.1" language="en" sourcelanguage="lo">中的language属性应该改为lo，以匹配文件名中的语言代码。

2. 在translations/deepin-draw_lo.ts文件中，<TS version="2.1" language="en" sourcelanguage="lo">中的sourcelanguage属性应该改为en，以匹配源文件的原始语言。

3. 在translations/deepin-draw_lo.ts文件中，<TS version="2.1" language="en" sourcelanguage="lo">中的version属性应该改为2.1，以匹配文件版本。

4. 在translations/deepin-draw_lo.ts文件中，<TS version="2.1" language="en" sourcelanguage="lo">中的<context>标签应该包含<name>和<message>标签，以提供上下文和消息翻译。

5. 在translations/desktop/desktop_lo.ts文件中，<TS version="2.1" language="lo">中的language属性应该改为lo，以匹配文件名中的语言代码。

6. 在translations/desktop/desktop_lo.ts文件中，<TS version="2.1" language="lo">中的<context>标签应该包含<name>和<message>标签，以提供上下文和消息翻译。

7. 在translations/desktop/desktop_lo.ts文件中，<TS version="2.1" language="lo">中的<message>标签应该包含<location>和<source>标签，以提供消息的位置和原始文本。

8. 在translations/desktop/desktop_lo.ts文件中，<TS version="2.1" language="lo">中的<message>标签应该包含<translation>标签，以提供消息的翻译文本。

9. 在translations/desktop/desktop_lo.ts文件中，<TS version="2.1" language="lo">中的<message>标签应该包含<location>和<source>标签，以提供消息的位置和原始文本。

10. 在translations/desktop/desktop_lo.ts文件中，<TS version="2.1" language="lo">中的<message>标签应该包含<translation>标签，以提供消息的翻译文本。

[deepin-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: JWWTSL, lzwind

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