style: use another font as Verdana do not work well with pinyin

src/resources/themes/v_detorte/v_detorte.css

@@ -1,6 +1,6 @@
 body {
     margin: 0 auto;
-    font-family: Verdana, Helvetica, sans-serif, Tahoma, Arial, Geneva, Georgia, Palatino, "Times New Roman", "Hiragino Sans GB", "冬青黑体", "Microsoft YaHei", "微软雅黑", "Microsoft YaHei UI", "WenQuanYi Micro Hei", "文泉驿雅黑", Dengxian, "等线体", STXihei, "华文细黑", "Liberation Sans", "Droid Sans", NSimSun, "新宋体", SimSun, "宋体";
+    font-family: "Segoe UI", Helvetica, sans-serif, Tahoma, Arial, Geneva, Georgia, Palatino, "Times New Roman", "Hiragino Sans GB", "冬青黑体", "Microsoft YaHei", "微软雅黑", "Microsoft YaHei UI", "WenQuanYi Micro Hei", "文泉驿雅黑", Dengxian, "等线体", STXihei, "华文细黑", "Liberation Sans", "Droid Sans", NSimSun, "新宋体", SimSun, "宋体";
     color: #DADADA;
     line-height: 1.5;
     padding: 15px;

src/resources/themes/v_detorte/v_detorte.palette

@@ -9,7 +9,7 @@ mdhl_file=v_detorte.mdhl
 css_file=v_detorte.css
 codeblock_css_file=v_detorte_codeblock.css
 mermaid_css_file=v_detorte_mermaid.css
-version=11
+version=12
 
 ; This mapping will be used to translate colors when the content of HTML is copied
 ; without background. You could just specify the foreground colors mapping here.

src/resources/themes/v_moonlight/v_moonlight.css

@@ -1,6 +1,6 @@
 body {
     margin: 0 auto;
-    font-family: Verdana, Helvetica, sans-serif, Tahoma, Arial, Geneva, Georgia, Palatino, "Times New Roman", "Hiragino Sans GB", "冬青黑体", "Microsoft YaHei", "微软雅黑", "Microsoft YaHei UI", "WenQuanYi Micro Hei", "文泉驿雅黑", Dengxian, "等线体", STXihei, "华文细黑", "Liberation Sans", "Droid Sans", NSimSun, "新宋体", SimSun, "宋体";
+    font-family: "Segoe UI", Helvetica, sans-serif, Tahoma, Arial, Geneva, Georgia, Palatino, "Times New Roman", "Hiragino Sans GB", "冬青黑体", "Microsoft YaHei", "微软雅黑", "Microsoft YaHei UI", "WenQuanYi Micro Hei", "文泉驿雅黑", Dengxian, "等线体", STXihei, "华文细黑", "Liberation Sans", "Droid Sans", NSimSun, "新宋体", SimSun, "宋体";
     color: #ABB2BF;
     line-height: 1.5;
     padding: 15px;

src/resources/themes/v_moonlight/v_moonlight.palette

@@ -7,7 +7,7 @@ mdhl_file=v_moonlight.mdhl
 css_file=v_moonlight.css
 codeblock_css_file=v_moonlight_codeblock.css
 mermaid_css_file=v_moonlight_mermaid.css
-version=22
+version=23
 
 ; This mapping will be used to translate colors when the content of HTML is copied
 ; without background. You could just specify the foreground colors mapping here.

src/resources/themes/v_native/v_native.css

@@ -1,6 +1,6 @@
 body {
     margin: 0 auto;
-    font-family: Verdana, Helvetica, sans-serif, Tahoma, Arial, Geneva, Georgia, Palatino, "Times New Roman", "Hiragino Sans GB", "冬青黑体", "Microsoft YaHei", "微软雅黑", "Microsoft YaHei UI", "WenQuanYi Micro Hei", "文泉驿雅黑", Dengxian, "等线体", STXihei, "华文细黑", "Liberation Sans", "Droid Sans", NSimSun, "新宋体", SimSun, "宋体";
+    font-family: "Segoe UI", Helvetica, sans-serif, Tahoma, Arial, Geneva, Georgia, Palatino, "Times New Roman", "Hiragino Sans GB", "冬青黑体", "Microsoft YaHei", "微软雅黑", "Microsoft YaHei UI", "WenQuanYi Micro Hei", "文泉驿雅黑", Dengxian, "等线体", STXihei, "华文细黑", "Liberation Sans", "Droid Sans", NSimSun, "新宋体", SimSun, "宋体";
     color: #222222;
     line-height: 1.5;
     padding: 15px;

src/resources/themes/v_native/v_native.palette

@@ -7,7 +7,7 @@ mdhl_file=v_native.mdhl
 css_file=v_native.css
 codeblock_css_file=v_native_codeblock.css
 mermaid_css_file=v_native_mermaid.css
-version=20
+version=21
 
 [phony]
 ; Abstract color attributes.

src/resources/themes/v_pure/v_pure.css

@@ -1,6 +1,6 @@
 body {
     margin: 0 auto;
-    font-family: Verdana, Helvetica, sans-serif, Tahoma, Arial, Geneva, Georgia, Palatino, "Times New Roman", "Hiragino Sans GB", "冬青黑体", "Microsoft YaHei", "微软雅黑", "Microsoft YaHei UI", "WenQuanYi Micro Hei", "文泉驿雅黑", Dengxian, "等线体", STXihei, "华文细黑", "Liberation Sans", "Droid Sans", NSimSun, "新宋体", SimSun, "宋体";
+    font-family: "Segoe UI", Helvetica, sans-serif, Tahoma, Arial, Geneva, Georgia, Palatino, "Times New Roman", "Hiragino Sans GB", "冬青黑体", "Microsoft YaHei", "微软雅黑", "Microsoft YaHei UI", "WenQuanYi Micro Hei", "文泉驿雅黑", Dengxian, "等线体", STXihei, "华文细黑", "Liberation Sans", "Droid Sans", NSimSun, "新宋体", SimSun, "宋体";
     color: #222222;
     line-height: 1.5;
     padding: 15px;

src/resources/themes/v_pure/v_pure.palette

@@ -7,7 +7,7 @@ mdhl_file=v_pure.mdhl
 css_file=v_pure.css
 codeblock_css_file=v_pure_codeblock.css
 mermaid_css_file=v_pure_mermaid.css
-version=22
+version=23
 
 [phony]
 ; Abstract color attributes.