feat: add entries for newest xdg-terminal-exec spec

[BLumia]

See also:

• https://gitlab.freedesktop.org/terminal-wg/specifications/-/merge_requests/3
• https://github.com/orgs/linuxdeepin/discussions/9817

Summary by Sourcery

New Features:

• Add support for the newest xdg-terminal-exec specification in the deepin-terminal desktop entry.

[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

This PR updates the deepin-terminal desktop entry to comply with the newest xdg-terminal-exec specification by adding/adjusting the appropriate Exec-related entries and metadata in the .desktop file.

File-Level Changes

Change	Details	Files
Align deepin-terminal .desktop entry with the latest xdg-terminal-exec spec requirements.	Update or add Exec/terminal-related keys to match the new xdg-terminal-exec spec fields and semantics Adjust desktop entry metadata (categories, actions, or compatibility keys) as required by the spec Ensure backward compatibility with existing desktop environments while supporting the new spec	src/deepin-terminal.desktop

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[sourcery-ai]

Hey - I've reviewed your changes and they look great!

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[deepin-ci-robot]

deepin pr auto review

★ 总体评分：95分

■ 【总体评价】

代码通过新增X-TerminalArgExec和X-TerminalArgDir配置项，修复了外部程序调用终端时的参数传递问题
逻辑正确且符合桌面环境规范，无安全漏洞，仅因配置文件固有的局限性扣除少量分数

■ 【详细分析】

• 1.语法逻辑（完全正确）✓

修改位于 src/deepin-terminal.desktop 文件中，新增的 X-TerminalArgExec=-e 和 X-TerminalArgDir=-w 符合 Desktop Entry 规范，键值对格式正确，无语法错误。
潜在问题：无
建议：无需修改

• 2.代码质量（优秀）✓

新增的配置项命名清晰，遵循了 XDG 桌面配置项的命名约定，能够准确表达其意图，便于其他桌面环境组件（如文件管理器）解析和调用。
潜在问题：无
建议：无需修改

• 3.代码性能（无性能问题）✓

该变更为静态配置文件修改，仅在程序启动或被外部程序查询时读取，不涉及运行时性能开销。
潜在问题：无
建议：无需修改

• 4.代码安全（存在0个安全漏洞）✓

漏洞对比统计：新增漏洞 0 个，减少漏洞 0 个，持平 0 个
本次修改仅添加终端启动参数声明，不涉及任何用户输入的直接处理或命令拼接，不存在命令注入等安全风险。

• 建议：无需修复

■ 【改进建议代码示例】

// 当前代码已是最优状态，无需修改
 X-Deepin-Vendor=deepin
 X-Deepin-Singleton=true
 Actions=new-window;quake-mode;
 MimeType=x-scheme-handler/dsg-terminal-exec
 X-TerminalArgExec=-e
 X-TerminalArgDir=-w

[deepin-bot]

TAG Bot

New tag: 6.5.40
DISTRIBUTION: unstable
Suggest: synchronizing this PR through rebase #556

[deepin-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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

The full list of commands accepted by this bot can be found here.

Details

Needs approval from an approver in each of these files:

• debian/deepin/OWNERS

Approvers can indicate their approval by writing /approve in a comment
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