Universal fzf loader on Arch and Debian

* tries loading on both distro locations
* only overrides fzf-history-widget if it was defined previously

.zshrc

@@ -96,15 +96,20 @@ xsource /usr/share/zsh/site-functions/git-flow-completion.zsh
 xsource /usr/share/doc/pkgfile/command-not-found.zsh
 
 
-# fzf history search with support for Ctrl+E history edit like with zaw widget before
-if [[ -f /usr/share/fzf/key-bindings.zsh && -f /usr/share/fzf/completion.zsh ]]; then
-    source /usr/share/fzf/key-bindings.zsh
-    source /usr/share/fzf/completion.zsh
 # default is 40%, and that is too much, limit to less lines
 FZF_TMUX_HEIGHT=6
 # other shortcuts already use reverse, except history search for some reason..
 FZF_CTRL_R_OPTS="--reverse"
 
+# Arch Linux
+xsource /usr/share/fzf/key-bindings.zsh
+xsource /usr/share/fzf/completion.zsh
+
+# Debian
+xsource /usr/share/doc/fzf/examples/key-bindings.zsh
+
+# fzf history search with support for Ctrl+E history edit like with zaw widget before
+if typeset -f fzf-history-widget > /dev/null; then
     # Copied form key-bindings.zsh
     # CTRL-R - Paste the selected command from history into the command line
     fzf-history-widget() {