nvim: init.vim: Add some more key bindings

Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com>

nvim/init.vim

@@ -231,8 +231,7 @@ nnoremap <Leader>sh  <Esc>:sp<CR>
 nnoremap <Leader>sv  <Esc>:vsp<CR>
 " Quit
 nnoremap <Leader>x  <Esc>:x<CR>
-nnoremap <Leader>q  <Esc>:q<CR>
-nnoremap <Leader>qa <Esc>:qa<CR>
+nnoremap <Leader>Q  <Esc>:qa<CR>
 " Terminal
 nnoremap <Leader>te :vsp<CR> :terminal<CR>
 nnoremap <Leader>tc :SlimeConfig<CR>
@@ -241,6 +240,8 @@ nmap <Leader>ts <Plug>SlimeParagraphSend
 " Tab navigation shortcuts
 nnoremap <Leader>tn :bn<CR>
 nnoremap <Leader>tp :bp<CR>
+nnoremap <PageUp>   :bprevious<CR>
+nnoremap <PageDown> :bnext<CR>
 " Reload opened vim config file
 nnoremap <Leader>vr :so %<CR>
 " For git
@@ -261,6 +262,7 @@ nnoremap <Leader>g- :Git stash<CR>:e<CR>
 nnoremap <Leader>g+ :Git stash pop<CR>:e<CR>
 nnoremap <Leader>gf :exe ':Ggrep ' . expand('<cword>')<CR>
 nnoremap <Leader>gF :Ggrep<SPACE>
+nnoremap <Leader>gg :GGrep<SPACE>
 " For gitgutter
 nnoremap <Leader>ghn :GitGutterNextHunk<CR>
 nnoremap <Leader>ghp :GitGutterPrevHunk<CR>
@@ -284,11 +286,14 @@ nnoremap <Leader>fn :cnext<CR>
 nnoremap <Leader>fp :cprevious<CR>
 nnoremap <Leader>fo :copen<CR>
 nnoremap <Leader>fc :cclose<CR>
+nnoremap <Leader>fs :vimgrep<SPACE>
 nnoremap <Leader>ft :call ToggleQuickfixList()<CR>
+
 nnoremap <Leader>ffn :lnext<CR>
 nnoremap <Leader>ffp :lprevious<CR>
 nnoremap <Leader>ffo :lopen<CR>
 nnoremap <Leader>ffc :lclose<CR>
+nnoremap <Leader>ffs :lvimgrep<SPACE>
 nnoremap <Leader>fft :call ToggleLocationList()<CR>
 
 " Key Bindings to help with terminal mode