chore: bump version to 1.1.21

[robertkill]

update changelog to 1.1.21

Summary by Sourcery

Chores:

• Bump Debian package version to 1.1.21 in changelog

[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

This PR updates the Debian package changelog by bumping the version to 1.1.21 and adjusting the release date accordingly.

File-Level Changes

Change	Details	Files
Bumped Debian changelog version to 1.1.21	Incremented version number to 1.1.21 Updated release date timestamp	debian/changelog

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[deepin-ci-robot]

deepin pr auto review

我来帮你审查这个 changelog 文件的变更。从 git diff 的内容来看，这是对 deepin-desktop-theme 包的版本更新记录。以下是我的分析和建议：

1. 语法和格式：

• changelog 的基本格式符合 Debian 规范，包含版本号、发行版本和紧急程度
• 变更条目使用了正确的缩进和项目符号格式
• 维护者信息和日期格式正确

2. 代码质量：

• 变更描述清晰，使用了标准的变更类型前缀（feat: 表示新功能）
• 描述简洁但信息量充足

3. 改进建议：

• 版本号格式：1.1.21 的递增是合理的，遵循了语义化版本控制
• 变更描述可以更具体一些，比如：
  • "update application display name and translations" 可以具体说明更新了哪些应用的显示名称
  • "improve UI layout and add file clearing functionality" 可以简要说明改进了哪些 UI 布局，以及文件清除功能的具体实现
• 建议在变更描述中加入相关的 bug 编号或需求编号（如果有的话），方便追踪
• 可以考虑添加关闭的相关 issues 编号，使用 "Closes: #bugnumber" 的格式

4. 安全性：

• 本次变更主要涉及 UI 和翻译更新，没有涉及安全相关的内容
• 建议在后续更新中，如果涉及安全相关变更，应该在 changelog 中明确说明

5. 版本管理：

• 建议保持版本号的连续性和一致性
• 紧急程度（urgency）设置为 medium 是合适的，因为这些是常规的功能更新

总体来说，这个 changelog 条目符合规范，但可以在描述的详细程度和可追溯性方面做一些改进。

[sourcery-ai]

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

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[github-actions]

TAG Bot

TAG: 1.1.21
EXISTED: no
DISTRIBUTION: unstable

[deepin-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: robertkill, wjyrich

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

Needs approval from an approver in each of these files:

• debian/deepin/OWNERS

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