refactor: clean up user example files to be easier to follow

lua/plugins/astrocore.lua

@@ -1,42 +0,0 @@
-return {
-  "AstroNvim/astrocore",
-  opts = {
-    features = {
-      max_file = { size = 1024 * 100, lines = 10000 }, -- set global limits for large files for disabling features like treesitter
-      autopairs = true, -- enable autopairs at start
-      cmp = true, -- enable completion at start
-      highlighturl = true, -- highlight URLs at start
-      notifications = true, -- enable notifications at start
-    },
-    -- Mapping data with "desc" stored directly by vim.keymap.set().
-    --
-    -- Please use this mappings table to set keyboard mapping since this is the
-    -- lower level configuration and more robust one. (which-key will
-    -- automatically pick-up stored data by this setting.)
-    mappings = {
-      -- first key is the mode
-      n = {
-        -- second key is the lefthand side of the map
-        -- mappings seen under group name "Buffer"
-        ["<leader>bn"] = { "<cmd>tabnew<cr>", desc = "New tab" },
-        ["<leader>bD"] = {
-          function()
-            require("astroui.status.heirline").buffer_picker(
-              function(bufnr) require("astrocore.buffer").close(bufnr) end
-            )
-          end,
-          desc = "Pick to close",
-        },
-        -- tables with just a `desc` key will be registered with which-key if it's installed
-        -- this is useful for naming menus
-        ["<leader>b"] = { desc = "Buffers" },
-        -- quick save
-        -- ["<C-s>"] = { ":w!<cr>", desc = "Save File" },  -- change description but the same command
-      },
-      t = {
-        -- setting a mapping to false will disable it
-        -- ["<esc>"] = false,
-      },
-    },
-  },
-}