feat(plugins): Add bufferline, remove rainbow ident-blankline

Added:
  - [bufferline.nvim](https://github.com/akinsho/bufferline.nvim)
  - Overseer status to lualine
Removed:
  - `{` and `}` keymaps for aerial (I like the default behavior more)

nvim/plugin/plugins.lua

@@ -14,4 +14,5 @@ require('which-key').setup()
 require('Comment').setup()
 require("better_escape").setup()
 require("todo-comments").setup()
+require("bufferline").setup{}
 require("toggleterm").setup()