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/forest_8k/json-scheme.json

@@ -0,0 +1,24 @@
+{
+  "name": "GVCCI Color Scheme",
+  "author": "",
+  "color": [
+    "#342b1f",
+    "#74613d",
+    "#3b6f3d",
+    "#59684e",
+    "#489352",
+    "#5ba72e",
+    "#53774a",
+    "#d3ebc6",
+    "#544532",
+    "#9c8252",
+    "#509753",
+    "#788b67",
+    "#64b56f",
+    "#78cd45",
+    "#6d9d61",
+    "#f6fbf4"
+  ],
+  "foreground": "#a3d08f",
+  "background": "#14100c"
+}