writing: Restructure module layout per-program

Similarly to the qutebrowser module we change the layout to have a
program name at the top-level and all required files for that specific
program within, whether they reside within .config, .local or anywhere
else.
We use dotter mappings to achieve this.

.dotter/global.toml

@@ -67,8 +67,14 @@ social = "~"
 
 [writing.files]
 "writing/README.md" = { target = "~/NOWHERE", type = "symbolic", if = "false" }
-"writing/.config/papis/papistui.yaml" = { target = "~/.config/papis/papistui.yaml", type = "symbolic" }
-"writing/.config/sioyek/prefs_user.config" = { target = "~/.config/sioyek/prefs_user.config", type = "template", prepend = "# TEMPLATED BY DOTTER\n" }
+"writing/jrnl" = "~/.config/jrnl"
+"writing/papis/papistui.yaml" = { target = "~/.config/papis/papistui.yaml", type = "symbolic" }
+"writing/papis" = "~/.config/papis"
+"writing/sioyek/prefs_user.config" = { target = "~/.config/sioyek/prefs_user.config", type = "template", prepend = "# TEMPLATED BY DOTTER\n" }
+"writing/sioyek" = "~/.config/sioyek"
+"writing/zathura" = "~/.config/zathura"
+"writing/zk" = "~/.config"
+"writing/pandoc/local" = "~/.local"
 writing = "~"
 
 # WORKSTATION: A desktop machine, with wayland environment and display attached.