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/lightbulb_4k/json-scheme.json

@@ -0,0 +1,24 @@
+{
+  "name": "GVCCI Color Scheme",
+  "author": "",
+  "color": [
+    "#1a1a1a",
+    "#f43131",
+    "#3d66c9",
+    "#eca601",
+    "#fe9d00",
+    "#f58402",
+    "#fd5807",
+    "#fcb5c3",
+    "#333333",
+    "#fc6767",
+    "#6b8bd9",
+    "#ffc02c",
+    "#ffb53c",
+    "#ffa135",
+    "#ff8042",
+    "#fff0f3"
+  ],
+  "foreground": "#cfedff",
+  "background": "#000000"
+}