feature(neovim): move lines and scroll screen

.config/nvim/lua/config/key_binds.lua

@@ -8,6 +8,10 @@ vim.cmd([[
   tnoremap <C-l> <C-\\><C-o><C-w>l
   tnoremap <C-j> <C-\\><C-o><C-w>j
 
+  " Screen scroll Alt+j
+  nnoremap <M-j> <C-e>
+  nnoremap <M-k> <C-y>
+
   " Window navigation
   nnoremap <C-h> <C-w>h
   nnoremap <C-j> <C-w>j
@@ -20,6 +24,15 @@ vim.cmd([[
   nnoremap <C-Up>    <C-w>k
   nnoremap <C-Right> <C-w>l
 
+  " Move single line (Normal mode)
+  nnoremap <C-S-j> :m .+1<CR>==
+  nnoremap <C-S-k> :m .-2<CR>==
+
+  " Move selected lines (Visual mode)
+  xnoremap <C-S-j> :m '>+1<CR>gv=gv
+  xnoremap <C-S-k> :m '<-2<CR>gv=gv
+
+  " Why?
   nnoremap <C-S-y> <Esc>:!echo meowmeow<CR>
 
   " I don't remember