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/.gvcci/themes/pixelated_outer_space/columns-with-headers.txt

@@ -0,0 +1,25 @@
+Background
+#000000
+
+Foreground
+#a4fbea
+
+Normal ANSI Colors
+#1a1a1a
+#53b153
+#53b153
+#2090d8
+#109bf3
+#2090d8
+#04c7c2
+#b5fcf8
+
+Bright ANSI Colors
+#333333
+#7bc67b
+#7bc67b
+#4eabe7
+#48b4f8
+#4eabe7
+#0dfbf4
+#f0fefe