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/ru.yaml

@@ -1,8 +1,6 @@
-toggleMenu:
-    other: Показать/скрыть меню
+toggleMenu: Показать/скрыть меню
 
-darkMode:
-    other: Тёмный режим
+darkMode: Тёмный режим
 
 list:
     page:
@@ -10,10 +8,7 @@ list:
         few: "{{ .Count }} страницы"
         many: "{{ .Count }} страниц"
         other: "{{ .Count }} страниц"
-
-    section:
-        other: Раздел
-
+    section: Раздел
     subsection:
         one: Подраздел
         few: Подразделы
@@ -21,43 +16,28 @@ list:
         other: Подразделы
 
 article:
-    back:
-        other: Назад
-    relatedContent:
-        other: Также рекомендуем
-    lastUpdatedOn:
-        other: Обновлено
-    tableOfContents: 
-        other: Содержание
-    readingTime: 
-        other: "Время чтения: {{ .Count }} мин."
+    back: Назад
+    relatedContent: Также рекомендуем
+    lastUpdatedOn: Обновлено
+    tableOfContents: Содержание
+    readingTime: "Время чтения: {{ .Count }} мин."
 
 notFound:
-    title:
-        other: Не найдено
-    subtitle:
-        other: Запрашиваемая страница не существует
+    title: Не найдено
+    subtitle: Запрашиваемая страница не существует
 
 widget:
     archives:
-        title:
-            other: Архивы
-        more:
-            other: Ещё
+        title: Архивы
+        more: Ещё
     tagCloud:
-        title:
-            other: Теги
+        title: Теги
 
 search:
-    title:
-        other: Поиск
-    placeholder:
-        other: Введите что-нибудь...
-    resultTitle:
-        other: "Найдено #PAGES_COUNT страниц (за #TIME_SECONDS с.)"
+    title: Поиск
+    placeholder: Введите что-нибудь...
+    resultTitle: "Найдено #PAGES_COUNT страниц (за #TIME_SECONDS с.)"
 
 footer:
-    builtWith:
-        other: Создано при помощи {{ .Generator }}
-    designedBy:
-        other: Тема {{ .Theme }}, дизайн {{ .DesignedBy }}
+    builtWith: Создано при помощи {{ .Generator }}
+    designedBy: Тема {{ .Theme }}, дизайн {{ .DesignedBy }}