Restructure config | Move some to a packer plugin | Lot of cleanup

* move teleacope files, updater and related utils to
  https://github.com/NvChad/core

* restructure config file and directory structure

* expose mappings for better escape

* allow multiple mappings for some

* improve merge table function for the same

* move autocommands to a seperate file

* rearrange everything alphabetically where sanely possible

* rearrange packer plugin list on the basis of trigerred state

config structure now

 .
├──  init.lua
├──  LICENSE
├──  lua
│  ├──  chadrc.lua
│  ├──  colors
│  │  ├──  highlights.lua
│  │  ├──  init.lua
│  │  └──  themes
│  │     ├──  chadracula.lua
│  │     ├──  everforest.lua
│  │     ├──  gruvchad.lua
│  │     ├──  javacafe.lua
│  │     ├──  mountain.lua
│  │     ├──  norchad.lua
│  │     ├──  one-light.lua
│  │     ├──  onedark.lua
│  │     ├──  tokyonight.lua
│  │     └──  tomorrow-night.lua
│  ├──  core
│  │  ├──  autocmds.lua
│  │  ├──  init.lua
│  │  ├──  mappings.lua
│  │  ├──  options.lua
│  │  └──  utils.lua
│  ├──  default_config.lua
│  └──  plugins
│     ├──  configs
│     │  ├──  autopairs.lua
│     │  ├──  autosave.lua
│     │  ├──  bufferline.lua
│     │  ├──  chadsheet.lua
│     │  ├──  compe.lua
│     │  ├──  dashboard.lua
│     │  ├──  gitsigns.lua
│     │  ├──  icons.lua
│     │  ├──  lspconfig.lua
│     │  ├──  luasnip.lua
│     │  ├──  nvimtree.lua
│     │  ├──  others.lua
│     │  ├──  statusline.lua
│     │  ├──  telescope.lua
│     │  ├──  treesitter.lua
│     │  └──  zenmode.lua
│     ├──  init.lua
│     └──  packerInit.lua
└──  README.md

lua/plugins/configs/dashboard.lua

@@ -0,0 +1,40 @@
+local g = vim.g
+local fn = vim.fn
+
+-- local plugins_count = fn.len(fn.globpath("~/.local/share/nvim/site/pack/packer/start", "*", 0, 1))
+
+g.dashboard_disable_at_vimenter = 1 -- dashboard is disabled by default
+g.dashboard_disable_statusline = 1
+g.dashboard_default_executive = "telescope"
+g.dashboard_custom_header = {
+   "                                   ",
+   "                                   ",
+   "                                   ",
+   "   ⣴⣶⣤⡤⠦⣤⣀⣤⠆     ⣈⣭⣿⣶⣿⣦⣼⣆         ",
+   "    ⠉⠻⢿⣿⠿⣿⣿⣶⣦⠤⠄⡠⢾⣿⣿⡿⠋⠉⠉⠻⣿⣿⡛⣦       ",
+   "          ⠈⢿⣿⣟⠦ ⣾⣿⣿⣷    ⠻⠿⢿⣿⣧⣄     ",
+   "           ⣸⣿⣿⢧ ⢻⠻⣿⣿⣷⣄⣀⠄⠢⣀⡀⠈⠙⠿⠄    ",
+   "          ⢠⣿⣿⣿⠈    ⣻⣿⣿⣿⣿⣿⣿⣿⣛⣳⣤⣀⣀   ",
+   "   ⢠⣧⣶⣥⡤⢄ ⣸⣿⣿⠘  ⢀⣴⣿⣿⡿⠛⣿⣿⣧⠈⢿⠿⠟⠛⠻⠿⠄  ",
+   "  ⣰⣿⣿⠛⠻⣿⣿⡦⢹⣿⣷   ⢊⣿⣿⡏  ⢸⣿⣿⡇ ⢀⣠⣄⣾⠄   ",
+   " ⣠⣿⠿⠛ ⢀⣿⣿⣷⠘⢿⣿⣦⡀ ⢸⢿⣿⣿⣄ ⣸⣿⣿⡇⣪⣿⡿⠿⣿⣷⡄  ",
+   " ⠙⠃   ⣼⣿⡟  ⠈⠻⣿⣿⣦⣌⡇⠻⣿⣿⣷⣿⣿⣿ ⣿⣿⡇ ⠛⠻⢷⣄ ",
+   "    ⢻⣿⣿⣄   ⠈⠻⣿⣿⣿⣷⣿⣿⣿⣿⣿⡟ ⠫⢿⣿⡆       ",
+   "       ⠻⣿⣿⣿⣿⣶⣶⣾⣿⣿⣿⣿⣿⣿⣿⣿⡟⢀⣀⣤⣾⡿⠃     ",
+   "                                   ",
+}
+
+g.dashboard_custom_section = {
+   a = { description = { "  Find File                 SPC f f" }, command = "Telescope find_files" },
+   b = { description = { "  Recents                   SPC f o" }, command = "Telescope oldfiles" },
+   c = { description = { "  Find Word                 SPC f w" }, command = "Telescope live_grep" },
+   d = { description = { "洛 New File                  SPC f n" }, command = "DashboardNewFile" },
+   e = { description = { "  Bookmarks                 SPC b m" }, command = "Telescope marks" },
+   f = { description = { "  Load Last Session         SPC l  " }, command = "SessionLoad" },
+}
+
+g.dashboard_custom_footer = {
+   "   ",
+   -- "NvChad Loaded " .. plugins_count .. " plugins",
+   "NvChad v0.5",
+}