feat: add session autosave functionality

lua/plugins/astrocore.lua

@@ -206,6 +206,19 @@ return {
   "AstroNvim/astrocore",
   ---@type AstroCoreOpts
   opts = {
+    sessions = {
+      -- Configure auto saving
+      autosave = {
+        last = true, -- auto save last session
+        cwd = true, -- auto save session for each working directory
+      },
+      -- Patterns to ignore when saving sessions
+      ignore = {
+        dirs = {}, -- working directories to ignore sessions in
+        filetypes = { "gitcommit", "gitrebase" }, -- filetypes to ignore sessions
+        buftypes = {}, -- buffer types to ignore sessions
+      },
+    },
     rooter = {
       -- list of detectors in order of prevalence, elements can be:
       --   "lsp" : lsp detection