Ignore mapping in fzf

- Category
- [ ] Question
- [x] Bug
- [x] Suggestion
- OS
- [x] Linux
- [ ] macOS
- [ ] Windows
- [ ] Etc.
- Vim
- [ ] Vim
- [x] Neovim

I'm mapped ESC to get Normal mode inside Neovim's terminal emulator but while i'm trying to out of fzf with ESC it get's Normal mode too. How to ignore all terminal mappings in fzf window?

I'm suggesting to ignore mappings by default too.

My Mappings
```vim
"" Mappings
nmap ğ [
nmap ü ]
noremap y "+y
noremap p "+]p
noremap P "+]P
map g/ (incsearch-stay)
map / (incsearch-forward)
map ? (incsearch-backward)

" Normal Mappings
nnoremap gV `[v`]
nnoremap S i
nnoremap ; :Files
nnoremap ` :Lines
nnoremap
nnoremap
nnoremap
nnoremap
nnoremap :m .+1==
nnoremap :m .-2==
nnoremap ga (EasyAlign)
nnoremap c :Codi!!
nnoremap d :Dirvish
nnoremap s :Scratch
nnoremap f :TagbarToggle
nnoremap r :RainbowToggle
nnoremap bq :bp bd #
nnoremap e :call ToggleIE()
nnoremap :LeaderGuide ''
nnoremap + :exe "resize " . (winheight(0) * 3/2)
nnoremap - :exe "resize " . (winheight(0) * 2/3)
nnoremap t :terminal
" Visual Mappings
xmap ga (EasyAlign)

vnoremap >gv$
vnoremap :LeaderGuideVisual ''

" Insert Mappings
imap +
imap mucomplete#extend_fwd("\")

" Terminal Mappings
tnoremap
```