feat(snipe): add indicator for modified files

lua/weeheavy/plugins/snipe.lua

@@ -14,6 +14,7 @@ return {
     },
     config = function()
         local snipe = require("snipe")
+
         snipe.setup({
             hints = {
                 -- Charaters to use for hints
@@ -28,6 +29,17 @@ return {
                     border = "rounded",
                 },
                 preselect_current = true,
+                -- Show a marker next to buffers that have unsaved changes
+                -- (no icons: filename/directory only)
+                buffer_format = {
+                    "filename",
+                    function(item)
+                        if item.classifiers:sub(5, 5) == "+" then
+                            return " [+]", "DiagnosticWarn"
+                        end
+                        return ""
+                    end,
+                },
             },
             navigate = {
                 cancel_snipe = "q",