vim: Load other always-on plugins too

And move the plugin specific keybindings into 40-keybindings.vim.
`packloadall` sources the plugins directly in contrast to `packadd`.
Because of that we can access the `g:loaded_*` variables and do not have
to specify our own keybindings for vim-surround as now the user bindings
are loaded later and overwrite possible clashes.

.config/vim/pack/plugins/start/fzf

@@ -0,0 +1 @@
+../opt/fzf

.config/vim/pack/plugins/start/fzf.vim

@@ -0,0 +1 @@
+../opt/fzf.vim

.config/vim/pack/plugins/start/vim-gutentags

@@ -0,0 +1 @@
+../opt/vim-gutentags/

.config/vim/pack/plugins/start/vim-surround

@@ -0,0 +1 @@
+../opt/vim-surround/

.config/vim/vim-surround.vim

@@ -1,10 +0,0 @@
-" Overwrite vim-surround bindings.
-nmap ds  <Plug>Dsurround
-nmap cs  <Plug>Csurround
-nmap cS  <Plug>CSurround
-nmap ys  <Plug>Ysurround
-nmap yS  <Plug>YSurround
-nmap yss <Plug>Yssurround
-nmap ySS <Plug>YSsurround
-xmap s   <Plug>VSurround
-xmap gs  <Plug>VgSurround

.config/vim/vimrc.d/20-plugins.vim

@@ -12,17 +12,6 @@ if (has('patch-8.1.1719') || has('nvim'))
 	packadd! coc.nvim
 	source $XDG_CONFIG_HOME/vim/coc.nvim.vim
 endif
-" Fuzzy finder
-packadd! fzf
-packadd! fzf.vim
-nmap <leader>f :Files<CR>
 " LaTeX
 autocmd BufNewFile,BufRead *.tex packadd! vimtex
 	\ | source $XDG_CONFIG_HOME/vim/vimtex.vim
-" ctags
-packadd! vim-gutentags
-nmap <leader>t :Tags<CR>
-" Surround text with parentheses, brackets, quotes, tags, etc.
-let g:surround_no_mappings = 1
-packadd! vim-surround
-source $XDG_CONFIG_HOME/vim/vim-surround.vim

.config/vim/vimrc.d/40-keybindings.vim

@@ -83,3 +83,11 @@ if (has('nvim'))
 elseif (has('terminal'))
 	nmap <leader><CR> :terminal<CR>
 endif
+
+" Plugin specific bindings
+if (get(g:, 'loaded_fzf'))
+	nmap <leader>f :Files<CR>
+	if (get(g:, 'loaded_gutentags'))
+		nmap <leader>t :Tags<CR>
+	endif
+endif