Font weight tweaks (#13854)

Font weight 500 is not discernible from 400 on some fonts/operating
systems so push them back to previous value 600 except for
fomantic-ui elements which stay at 500.

Co-authored-by: techknowlogick <techknowlogick@gitea.io>
Co-authored-by: 6543 <6543@obermui.de>

web_src/less/_admin.less

@@ -55,7 +55,7 @@
     }
 
     dt {
-      font-weight: 500;
+      font-weight: 600;
       float: left;
       width: 285px;
       clear: left;

web_src/less/_base.less

@@ -146,10 +146,7 @@ samp {
 }
 
 b,
-strong {
-  font-weight: 500;
-}
-
+strong,
 h1,
 h2,
 h3,
@@ -746,7 +743,7 @@ a.ui.card:hover,
     }
 
     &.bold {
-      font-weight: 500;
+      font-weight: 600;
     }
 
     &.italic {
@@ -781,7 +778,6 @@ a.ui.card:hover,
   }
 
   &.bottom.attached.message {
-    font-weight: 500;
     text-align: left;
     color: black;
 
@@ -1042,7 +1038,7 @@ a.ui.card:hover,
 
 .scrolling.menu {
   .item.selected {
-    font-weight: 500 !important;
+    font-weight: 600 !important;
   }
 }
 

web_src/less/_chroma.less

@@ -352,7 +352,7 @@
 /* GenericStrong */
 
 .chroma .gs {
-  font-weight: 500;
+  font-weight: 600;
 }
 /* GenericSubheading */
 

web_src/less/_repository.less

@@ -969,7 +969,7 @@
         }
 
         .author {
-          font-weight: 500;
+          font-weight: 600;
         }
 
         .comment-form-reply .footer {

web_src/less/_user.less

@@ -9,7 +9,7 @@
       }
 
       .header {
-        font-weight: 500;
+        font-weight: 600;
         font-size: 1.3rem;
         margin-top: -.2rem;
         line-height: 1.3rem;

web_src/less/themes/theme-arc-green.less

@@ -447,7 +447,7 @@
 /* GenericStrong */
 
 .chroma .gs {
-  font-weight: 500;
+  font-weight: 600;
 }
 /* GenericSubheading */