Add Auto Session plugin

Helps with managing previous sessions

lua/custom/plugins/auto-session.lua

@@ -0,0 +1,57 @@
+return {
+  'rmagatti/auto-session',
+  lazy = false,
+  keys = {
+    -- Will use Telescope if installed or a vim.ui.select picker otherwise
+    { '<leader>wr', '<cmd>AutoSession search<CR>', desc = 'Session search' },
+    { '<leader>ws', '<cmd>AutoSession save<CR>', desc = 'Save session' },
+    { '<leader>wa', '<cmd>AutoSession toggle<CR>', desc = 'Toggle autosave' },
+  },
+
+  ---enables autocomplete for opts
+  ---@module "auto-session"
+  ---@type AutoSession.Config
+  opts = {
+    -- The following are already the default values, no need to provide them if these are already the settings you want.
+    session_lens = {
+      picker = nil, -- "telescope"|"snacks"|"fzf"|"select"|nil Pickers are detected automatically but you can also manually choose one. Falls back to vim.ui.select
+      mappings = {
+        -- Mode can be a string or a table, e.g. {"i", "n"} for both insert and normal mode
+        delete_session = { 'i', '<C-d>' },
+        alternate_session = { 'i', '<C-s>' },
+        copy_session = { 'i', '<C-y>' },
+      },
+
+      picker_opts = {
+        -- For Telescope, you can set theme options here, see:
+        -- https://github.com/nvim-telescope/telescope.nvim/blob/master/doc/telescope.txt#L112
+        -- https://github.com/nvim-telescope/telescope.nvim/blob/master/lua/telescope/themes.lua
+        --
+        -- border = true,
+        -- layout_config = {
+        --   width = 0.8, -- Can set width and height as percent of window
+        --   height = 0.5,
+        -- },
+
+        -- For Snacks, you can set layout options here, see:
+        -- https://github.com/folke/snacks.nvim/blob/main/docs/picker.md#%EF%B8%8F-layouts
+        --
+        -- preset = "dropdown",
+        -- preview = false,
+        -- layout = {
+        --   width = 0.4,
+        --   height = 0.4,
+        -- },
+
+        -- For Fzf-Lua, picker_opts just turns into winopts, see:
+        -- https://github.com/ibhagwan/fzf-lua#customization
+        --
+        --  height = 0.8,
+        --  width = 0.50,
+      },
+
+      -- Telescope only: If load_on_setup is false, make sure you use `:AutoSession search` to open the picker as it will initialize everything first
+      load_on_setup = true,
+    },
+  },
+}