Massive configuration overhaul

Currently paying the price of months of non-diligent git usage.

Here's what has changed.

- Theming support in Gvcci and wpgtk
- Dropping support for i3
- Supporting EXWM
- Many Elisp modules
- Collapsed redundant directories in ./configs

configs/shared/.zprofile

@@ -0,0 +1,12 @@
+# ZSH seems to avoid sourcing ~/.profile during SSH sessions.
+# X (or something else) seems to source ~/.profile with it initializes.
+# Putting this here allows my SSH sessions to have the expected configuration.
+#
+# Putting this here instead of in my .zshrc or .zshenv is advantageous since it
+# is only called once when a terminal is created; subshells and nested ZSH
+# sessions don't re-source this file.
+#
+# See this thread for more information: https://groups.google.com/a/google.com/forum/#!topic/zsh-users/VO2lEJRfFzk
+source ~/.profile
+
+export PATH="$HOME/.cargo/bin:$PATH"