feat(nvim): add shada utility file

Author: kutsan

.config/nvim/lua/user/shada.lua

@@ -0,0 +1,13 @@
+local function set_shada_file()
+  local git_root = require('snacks').git.get_root()
+  local dir = git_root ~= nil and git_root or vim.fn.getcwd()
+
+  local shada_file = vim.fs.joinpath(
+    vim.fn.stdpath('state'),
+    'shada',
+    vim.fn.fnamemodify(dir, ':t') .. '.shada'
+  )
+  vim.o.shadafile = shada_file
+end
+
+return { set_shada_file = set_shada_file }