Merge branch 'canary' into master (#711)

* refactor(i18n): simplify the structure of the translation file

* chore: prepare repository for v4.0.0-alpha

* chore: modify go.mod to v4

* refactor: migrate theme configuration to TOML

* fix: exampleSite not using correct theme

* feat: add favicon from assets folder

* refactor: drop linear grandient background feature

remove node-vibrant from dependencies

* feat: use Hugo's code block render hook to implement code copy button

Now it can have i18n support

* refactor: delete color.ts

* refactor: delete Emoji support post from example site

* refactor: drop support for `hidden` field in front matter

* feat: upgrade to PhotoSwipe v5

* chore: bump the required hugo version to 0.100.0

* refactor: remove PhotoSwipe from external.yaml

* fix: extra margin in search result

* fix: incorrect markdown heading level in example site

* refactor: remove some usages of `default` in template

No longer needed thanks to Hugo's configuration merge

* fix: one line codeblock style in firefox

closes https://github.com/CaiJimmy/hugo-theme-stack/issues/564

* feat: add style to new codeblock

* feat: i18n support for codeblock copy text

* fix(menu): jitter when closing menu

It's caused by flexbox gap property, which can't animate

* fix(search): long text overflows under the Search icon

closes https://github.com/CaiJimmy/hugo-theme-stack/issues/515

i18n/zh-hk.yaml

@@ -1,73 +1,43 @@
-toggleMenu:
-    other: 切換選單
+toggleMenu: 切換選單
 
-darkMode:
-    other: 深色模式
+darkMode: 深色模式
 
 list:
     page:
         one: "第 {{ .Count }} 頁"
         other: "第 {{ .Count }} 頁"
-
-    section:
-        other: Section
-
+    section: Section
     subsection:
         one: Subsection
         other: Subsections
 
 article:
-    back:
-        other: 返回
-
-    tableOfContents:
-        other: 目錄
-
-    relatedContent:
-        other: 相關內容
-
-    lastUpdatedOn:
-        other: 上次改過於
-
+    back: 返回
+    tableOfContents: 目錄
+    relatedContent: 相關內容
+    lastUpdatedOn: 上次改過於
     readingTime:
         one: "需要 {{ .Count }} 分鐘閱讀"
         other: "需要 {{ .Count }} 分鐘閱讀"
 
 notFound:
-    title:
-        other: Not Found
-
-    subtitle:
-        other: 頁面不存在
+    title: Not Found
+    subtitle: 頁面不存在
 
 widget:
     archives:
-        title:
-            other: Archives
-
-        more:
-            other: 更多
-
+        title: Archives
+        more: 更多
     tagCloud:
-        title:
-            other: Tags
+        title: Tags
     categoriesCloud:
-        title:
-            other: Categories
+        title: Categories
 
 search:
-    title:
-        other: 搜尋
-
-    placeholder:
-        other: Type 關鍵字...
-
-    resultTitle:
-        other: "#PAGES_COUNT pages (#TIME_SECONDS seconds)"
+    title: 搜尋
+    placeholder: Type 關鍵字...
+    resultTitle: "#PAGES_COUNT pages (#TIME_SECONDS seconds)"
 
 footer:
-    builtWith:
-        other: Built with {{ .Generator }}
-
-    designedBy:
-        other: 主題 {{ .Theme }} 由 {{ .DesignedBy }} 設計
+    builtWith: Built with {{ .Generator }}
+    designedBy: 主題 {{ .Theme }} 由 {{ .DesignedBy }} 設計