(mini.base16) Fix MiniNotifyBorder to link to NormalFloat.

Details:
- This allows to actually show border in floating windows and is more
  aligned with other 'mini.nvim' modules.

lua/mini/base16.lua

@@ -701,7 +701,7 @@ H.apply_palette = function(palette, use_cterm)
     hi('MiniMapSymbolLine',  {fg=p.base0D, bg=nil,      attr=nil, sp=nil})
     hi('MiniMapSymbolView',  {fg=p.base0F, bg=nil,      attr=nil, sp=nil})
 
-    hi('MiniNotifyBorder', {link='FloatBorder'})
+    hi('MiniNotifyBorder', {link='NormalFloat'})
     hi('MiniNotifyNormal', {link='NormalFloat'})
     hi('MiniNotifyTitle',  {link='FloatTitle'})