feat: enable navic integration for catppuccin theme

modules/theme/supported_themes.nix

@@ -60,7 +60,11 @@
           markdown = true,
           noice = true,
           notify = true, -- nvim-notify
-          which_key = true
+          which_key = true,
+          navic = {
+            enabled = false,
+            custom_bg = "NONE", -- "lualine" will set background to mantle
+          },
         },
       }
       -- setup must be called before loading

modules/ui/breadcrumbs/config.nix

@@ -31,6 +31,10 @@ in {
       local navic = require("nvim-navic")
       local actions = require("nvim-navbuddy.actions")
 
+      require("nvim-navic").setup {
+        highlight = true
+      }
+
       -- TODO: wrap this in an optional string with navbuddy as the enable condition
       navbuddy.setup {
           window = {