Do not load packer on startup

Actually saved some milliseconds, can be observed in benchmarks too

from packer readme

```
To optimize startup time, packer.nvim compiles code to perform the lazy-loading operations you specify. This means that you do not need to load packer.nvim unless you want to perform some plugin management operations.
```

Add packer commands manually to mappings.lua, but with basic functionalty

By this, we don't losr the packer commands and don't even load at startup

After some command is actually executed, it will load the PackerCommands as they were

init.lua

@@ -1,6 +1,5 @@
 local chad_modules = {
     "options",
-    "pluginList",
     "mappings",
     "utils"
 }

lua/mappings.lua

@@ -146,3 +146,10 @@ map("n", "<Esc>", ":noh<CR>", opt)
 
 -- get out of terminal with jk
 map("t", "jk", "<C-\\><C-n>", opt)
+
+-- Packer commands till because we are not loading it at startup
+vim.cmd("silent! command PackerCompile lua require 'pluginList' require('packer').compile()")
+vim.cmd("silent! command PackerInstall lua require 'pluginList' require('packer').install()")
+vim.cmd("silent! command PackerStatus lua require 'pluginList' require('packer').status()")
+vim.cmd("silent! command PackerSync lua require 'pluginList' require('packer').sync()")
+vim.cmd("silent! command PackerUpdate lua require 'pluginList' require('packer').update()")