chore(nvim): add key mappings

nvim/init.vim

@@ -62,3 +62,89 @@ set thesaurus+=~/.config/nvim/thesaurus/de_openthesaurus.txt
 " ************************************
 
 let mapleader = "\<space>"
+
+" Quick toggle between buffers
+noremap <leader>j :b#<CR>
+
+" Add semicolon or comma to the end of the line
+nnoremap <leader>; A;<ESC>
+nnoremap <leader>, A,<ESC>
+
+" Delete last character of line
+nnoremap <leader>x $x
+
+" Open vim config in a new buffer, reload vim config
+nnoremap <leader>ve :e $MYVIMRC<CR>
+nnoremap <leader>vr :source $MYVIMRC<CR>
+
+" Delete all buffers
+nnoremap <silent> <leader>da :exec "1," . bufnr('$') . "bd"<CR>
+
+" Set spell checker to `s`
+" zg (good), zG (good temp), zw (wrong), zW (wrong temp)
+nnoremap <silent> <leader>s :set spell!<CR>
+
+" Switch off highlighting
+nnoremap <silent> <leader>h :nohlsearch<CR>
+
+" Toogle list
+nnoremap <leader>l :set list!<CR>
+
+" Indent the whole source code
+nnoremap <leader>ff gg=G''
+
+" Reverse the mark mapping
+nnoremap ' `
+nnoremap ` '
+
+" Visuall select of just pasted content
+nnoremap gp `[v`]
+nnoremap gy `[v`]y
+
+" Open a quickfix window for the last search
+nnoremap <silent> <leader>? :execute 'vimgrep /'.@/.'/g %'<CR>:copen<CR>
+
+" Faster linewise scrolling
+noremap <C-e> 3<C-e>
+noremap <C-y> 3<C-y>
+
+" Keep the window centered
+noremap G Gzzzv
+noremap n nzzzv
+noremap N Nzzzv
+noremap } }zzzv
+noremap { {zzzv
+
+" Close all buffers
+nnoremap XX :qa<CR>
+
+" Add lines in NORMAL Mode
+nnoremap gn o<ESC>k
+nnoremap gN O<ESC>j
+
+" Change to the folder of the current file
+nnoremap <silent> <leader>cf :cd %:p:h<CR>:pwd<CR>
+
+" Quickfix Window
+nnoremap <leader>qo :copen<CR>
+nnoremap <leader>qc :cclose<CR>
+
+" Navigation of buffers
+nnoremap <leader>n :bnext<CR>
+nnoremap <leader>p :bprev<CR>
+
+" Exit INSERT MODE with 'jk'
+inoremap jk <ESC>
+
+" Reformat a line into a block
+nnoremap <leader>q gqip
+
+" Reformat a block into a line
+nnoremap <leader>qq vipJ
+
+" Easier split navigation
+nnoremap <C-J> <C-W><C-J>
+nnoremap <C-K> <C-W><C-K>
+nnoremap <C-L> <C-W><C-L>
+nnoremap <C-H> <C-W><C-H>
+