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/geometric_4k/json-scheme.json

@@ -0,0 +1,24 @@
+{
+  "name": "GVCCI Color Scheme",
+  "author": "",
+  "color": [
+    "#1e2845",
+    "#b1454d",
+    "#5e916f",
+    "#9d8265",
+    "#629184",
+    "#e40f3f",
+    "#27957f",
+    "#fcb6be",
+    "#2d3c69",
+    "#c86b72",
+    "#7eae8e",
+    "#b7a089",
+    "#83aea2",
+    "#f43c65",
+    "#33c6a8",
+    "#fff0f2"
+  ],
+  "foreground": "#fd9c62",
+  "background": "#0e1321"
+}