flavours: Add fzf styling

Added styling for fzf using the base16 schemes. Currently applies only
on newly opened shell environments but that's good enough for me.

desktop/.config/flavours/config.toml

@@ -61,7 +61,6 @@ template = "qutebrowser"
 subtemplate = "minimal"
 file = "~/.local/state/qutebrowser/colorscheme.py"
 rewrite = true
-light = false
 hook = "pgrep -x qutebrowser && qutebrowser :config-source"
 
 # CSS Webpage styling in qutebrowser
@@ -90,3 +89,10 @@ file = "~/.config/sioyek/prefs_user.config"
 rewrite = false
 start = "# START FLAVOURS"
 end = "# END FLAVOURS"
+
+[[items]]
+template = "fzf"
+subtemplate = "sh"
+file = "~/.config/sh/env.d/fzf-base16.sh"
+rewrite = true
+hook = "source ~/.config/sh/env.d/fzf-base16.sh"