Sync font definitions.

Author: Maikuolan

assets/template_primer.html

@@ -8,7 +8,7 @@
   <title>phpMussel</title>
   <style>
 body,#wrapper{text-align:center}
-body{font-family:BlinkMacSystemFont,"Segoe UI",Helvetica,'Arial',sans-serif;letter-spacing:1px;text-decoration:none;border-style:none;margin:0;padding:0;white-space:normal;background-color:#f6f8fa;color:#24292e;font-size:calc((12px * {magnification}) + .03vw)}
+body{font-family:BlinkMacSystemFont,"Segoe UI",'Helvetica','Arial',sans-serif;letter-spacing:1px;text-decoration:none;border-style:none;margin:0;padding:0;white-space:normal;background-color:#f6f8fa;color:#24292e;font-size:calc((12px * {magnification}) + .03vw)}
 hr{box-sizing:content-box;height:0;overflow:visible;height:0;margin:15px 0;overflow:hidden;background:0 0;border:0;border-bottom:1px solid #dadde1}
 hr::after{display:table;clear:both;content:""}
 hr::before{display:table;content:""}

assets/template_primerdark.html

@@ -8,7 +8,7 @@
   <title>phpMussel</title>
   <style>
 body,#wrapper{text-align:center}
-body{font-family:BlinkMacSystemFont,"Segoe UI",Helvetica,'Arial',sans-serif;letter-spacing:1px;text-decoration:none;border-style:none;margin:0;padding:0;white-space:normal;background-color:#18191a;color:#e4e6eb;font-size:calc((12px * {magnification}) + .03vw)}
+body{font-family:BlinkMacSystemFont,"Segoe UI",'Helvetica','Arial',sans-serif;letter-spacing:1px;text-decoration:none;border-style:none;margin:0;padding:0;white-space:normal;background-color:#18191a;color:#e4e6eb;font-size:calc((12px * {magnification}) + .03vw)}
 hr{box-sizing:content-box;height:0;overflow:visible;height:0;margin:15px 0;overflow:hidden;background:0 0;border:0;border-bottom:1px solid #3a3b3c}
 hr::after{display:table;clear:both;content:""}
 hr::before{display:table;content:""}