chore: 初始化 Hugo 博客项目

Hextra 主题，8 篇文章，支持全文搜索/暗色模式

themes/hextra/layouts/_partials/utils/title.html

@@ -0,0 +1,19 @@
+{{/*
+  This utility is used to retrieve the title of a page or section.
+  If no title is set, it falls back to using the directory or file name.
+
+  Based on https://github.com/thegeeklab/hugo-geekdoc/blob/v0.44.0/layouts/partials/utils/title.html
+*/}}
+{{- $title := "" }}
+
+{{ if .LinkTitle }}
+  {{ $title = .LinkTitle }}
+{{ else if .Title }}
+  {{ $title = .Title }}
+{{ else if and .IsSection .File }}
+  {{ $title = path.Base .File.Dir | humanize | title }}
+{{ else if and .IsPage .File }}
+  {{ $title = .File.BaseFileName | humanize | title }}
+{{ end }}
+
+{{ return $title -}}