refactor: correctness fixes, API modernization, and cleanup

lua/plugins/gitsigns.lua

@@ -3,7 +3,7 @@ require("gitsigns").setup({
         border = "single",
     },
     on_attach = function(bufnr)
-        local gs = package.loaded.gitsigns
+        local gs = require("gitsigns")
         vim.keymap.set(
             "n",
             "<leader>gv",
@@ -14,12 +14,6 @@ require("gitsigns").setup({
         vim.keymap.set("x", "<leader>gs", function()
             gs.stage_hunk({ vim.fn.line("."), vim.fn.line("v") })
         end, { buffer = bufnr })
-        vim.keymap.set(
-            { "n", "x" },
-            "<leader>gu",
-            gs.undo_stage_hunk,
-            { buffer = bufnr }
-        )
         vim.keymap.set("n", "<leader>gr", gs.reset_hunk, { buffer = bufnr })
         vim.keymap.set(
             "x",
@@ -37,19 +31,25 @@ require("gitsigns").setup({
             gs.blame_line({ full = true, ignore_whitespace = true })
         end, { buffer = bufnr })
         vim.keymap.set({ "n", "x" }, "]g", function()
-            gs.next_hunk({
+            gs.nav_hunk("next", {
                 wrap = true,
-                navigation_message = true,
                 foldopen = true,
+                navigation_message = true,
+                greedy = true,
                 preview = true,
+                count = 1,
+                target = "all",
             })
         end)
         vim.keymap.set({ "n", "x" }, "[g", function()
-            gs.prev_hunk({
+            gs.nav_hunk("prev", {
                 wrap = true,
-                navigation_message = true,
                 foldopen = true,
+                navigation_message = true,
+                greedy = true,
                 preview = true,
+                count = 1,
+                target = "all",
             })
         end)
     end,

lua/plugins/nvim-notify.lua

@@ -1,6 +1,8 @@
-vim.notify = require("notify")
----@diagnostic disable-next-line: missing-fields
-vim.notify.setup({
+local notify = require("notify")
+notify.setup({
     render = "default",
     stages = "static",
+    merge_duplicates = true,
 })
+
+vim.notify = notify