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_landscape/json-scheme.json

@@ -0,0 +1,24 @@
+{
+  "name": "GVCCI Color Scheme",
+  "author": "",
+  "color": [
+    "#203f46",
+    "#312cc6",
+    "#1b20e1",
+    "#2235c7",
+    "#37489c",
+    "#103ec7",
+    "#136f9d",
+    "#bbe2f6",
+    "#2f5f6a",
+    "#5954db",
+    "#4e51ec",
+    "#4558e1",
+    "#4e61c2",
+    "#2658ee",
+    "#1a95d3",
+    "#f1f9fd"
+  ],
+  "foreground": "#000000",
+  "background": "#9cc8d3"
+}