Neovim terminal win: auto insert mode & no line numbers

When opening a terminal window in neovim with :terminal the terminal
shall start directly in insert mode and shall not have any line numbers

Sources:
* https://vi.stackexchange.com/a/22956
* https://stackoverflow.com/a/63908546

hosts/p14s/home.nix

@@ -37,6 +37,7 @@
     htop
     btop
     fd # unnamed dependency for the fuzzy finder fzf
+    lazygit
 
     # Network
     wireguard-go

modules/dotfiles/init.vim

@@ -336,6 +336,10 @@ map <leader>x :e ~/buffer.md<cr>
 " Toggle paste mode on and off
 map <leader>pp :setlocal paste!<cr>
 
+" Always switch to insert mode for terminal window and disable
+" line numbers
+autocmd TermOpen * setlocal nonumber norelativenumber
+autocmd TermOpen * startinsert
 
 """""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
 " => Helper functions