qutebrowser: Make use of dotter for dir structure

Since we now use dotter we can simplify the dir structure for
qutebrowser a lot. Everything dot-filed earlier can now reside
in simple directories called config (for ~/.config/qutebrowser),
data (for ~/.local/share/qutebrowser), and scripts
(for ~/.local/bin) files.

.dotter/global.toml

@@ -54,7 +54,9 @@ office = "~"
 pass = "~"
 
 [qutebrowser.files]
-qutebrowser = "~"
+"qutebrowser/config" = "~/.config/qutebrowser"
+"qutebrowser/scripts" = "~/.local/bin"
+"qutebrowser/data" = "~/.local/share/qutebrowser"
 
 [scripts.files]
 "scripts/README.md" = { target = "~/README.md", type = "symbolic", if = "false" }