add niri and update nvim config

.config/nvim/lua/plug_init/vim_init.lua

@@ -1,6 +1,7 @@
 vim.o.compatible = false
 vim.o.showmatch = true
 vim.o.hlsearch = true
+vim.o.ignorecase = true
 vim.o.smartcase = true
 vim.o.incsearch = false
 vim.o.tabstop = 4
@@ -38,6 +39,7 @@ vim.g.netrw_winsize = 20
 --	   is used for the preview window.
 
 vim.g.mapleader = " "
+-- vim.g.maplocalleader = "\\"
 
 -- move highlighted lines up and down, automatic indentation
 vim.keymap.set("v", "J", ":m '>+1<CR>gv=gv")