feat(search): add snippetLength config for search results (#296)

exampleSite/content/posts/theme-documentation-basics.en.md

@@ -227,6 +227,8 @@ Please open the code block below to view the complete sample configuration :(far
     placeholder = ""
     # {{< version 0.2.1 >}} max number of results length
     maxResultLength = 10
+    # {{< version 0.2.3 >}} snippet length of the result
+    snippetLength = 30
     # {{< version 0.2.1 >}} HTML tag name of the highlight part in results
     highlightTag = "em"
     [params.search.algolia]
@@ -979,6 +981,8 @@ Here is the search configuration in your [site configuration](#site-configuratio
   placeholder = ""
   # {{< version 0.2.1 >}} max number of results length
   maxResultLength = 10
+  # {{< version 0.2.3 >}} snippet length of the result
+  snippetLength = 30
   # {{< version 0.2.1 >}} HTML tag name of the highlight part in results
   highlightTag = "em"
   [params.search.algolia]

exampleSite/content/posts/theme-documentation-basics.fr.md

@@ -232,6 +232,8 @@ Please open the code block below to view the complete sample configuration :(far
     placeholder = ""
     # {{< version 0.2.1 >}} max number of results length
     maxResultLength = 10
+    # {{< version 0.2.3 >}} snippet length of the result
+    snippetLength = 30
     # {{< version 0.2.1 >}} HTML tag name of the highlight part in results
     highlightTag = "em"
     [params.search.algolia]
@@ -984,6 +986,8 @@ Here is the search configuration in your [site configuration](#site-configuratio
   placeholder = ""
   # {{< version 0.2.1 >}} max number of results length
   maxResultLength = 10
+  # {{< version 0.2.3 >}} snippet length of the result
+  snippetLength = 30
   # {{< version 0.2.1 >}} HTML tag name of the highlight part in results
   highlightTag = "em"
   [params.search.algolia]

exampleSite/content/posts/theme-documentation-basics.zh-cn.md

@@ -228,9 +228,11 @@ hugo
     contentLength = 4000
     # 搜索框的占位提示语
     placeholder = ""
-    # 最大结果数目
+    # {{< version 0.2.1 >}} 最大结果数目
     maxResultLength = 10
-    # 搜索结果中高亮部分的 HTML 标签
+    # {{< version 0.2.3 >}} 结果内容片段长度
+    snippetLength = 50
+    # {{< version 0.2.1 >}} 搜索结果中高亮部分的 HTML 标签
     highlightTag = "em"
     [params.search.algolia]
       index = ""
@@ -982,9 +984,11 @@ defaultContentLanguage = "zh-cn"
   contentLength = 4000
   # 搜索框的占位提示语
   placeholder = ""
-  # 最大结果数目
+  # {{< version 0.2.1 >}} 最大结果数目
   maxResultLength = 10
-  # 搜索结果中高亮部分的 HTML 标签
+  # {{< version 0.2.3 >}} 结果内容片段长度
+  snippetLength = 50
+  # {{< version 0.2.1 >}} 搜索结果中高亮部分的 HTML 标签
   highlightTag = "em"
   [params.search.algolia]
     index = ""