Added heirline setup_colors support

Match active tab with winbar background

lua/astrobox/heirline.lua

@@ -0,0 +1,8 @@
+local M = {}
+
+function M.setup_colors(colors)
+    colors.buffer_active_bg = colors.tab_active_bg
+    return colors
+end
+
+return M

lua/astrobox/highlights/modules/astro_heirline.lua

@@ -1,6 +1,6 @@
-return function()
+return function(theme)
     return {
-        HeirlineInactive = { link = "StatusInactive" },
+        HeirlineInactive = theme.error,
         HeirlineNormal = { link = "StatusNormal" },
         HeirlineInsert = { link = "StatusInsert" },
         HeirlineVisual = { link = "StatusVisual" },

lua/astrobox/theme.lua

@@ -102,14 +102,14 @@ function M.make_theme(P, C)
         },
     }
     T.winbar = {
-        active = {
-            fg = P.fg_gradiant[1],
-            bg = P.bg,
-        },
         normal = {
             fg = P.fg_gradiant[1],
             bg = P.harder_bg,
         },
+        active = {
+            fg = P.fg_gradiant[1],
+            bg = P.bg,
+        },
         inactive = {
             fg = P.bg_gradiant[3],
             bg = P.harder_bg,