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/bike_tire_blue_4k/json-scheme.json

@@ -0,0 +1,24 @@
+{
+  "name": "GVCCI Color Scheme",
+  "author": "",
+  "color": [
+    "#3b2e2b",
+    "#715b5c",
+    "#388994",
+    "#834e7a",
+    "#3a8992",
+    "#6c5b56",
+    "#3d888f",
+    "#f4bdc3",
+    "#584541",
+    "#937678",
+    "#4dafbc",
+    "#a6689b",
+    "#4fb0ba",
+    "#8f7870",
+    "#52aeb7",
+    "#fdf2f3"
+  ],
+  "foreground": "#162a26",
+  "background": "#e4dcda"
+}