migrate nvim config to 0.12.0: vim.pack, ui2, snacks -> mini, just general spring cleaning

nvim/plugin/tiny-glimmer.lua

@@ -0,0 +1,24 @@
+require("tiny-glimmer").setup({
+    refresh_interval_ms = 6,
+    overwrite = {
+        auto_map = true,
+        paste = {
+            enabled = true,
+            default_animation = { name = "fade", settings = { from_color = "DiffText" } },
+        },
+        undo = {
+            enabled = true,
+            default_animation = { name = "fade", settings = { from_color = "DiffDelete" } },
+        },
+        redo = {
+            enabled = true,
+            default_animation = { name = "fade", settings = { from_color = "DiffAdd" } },
+        },
+    },
+    animations = {
+        fade = {
+            chars_for_max_duration = 1,
+            to_color = "Folded",
+        },
+    },
+})