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/tilix.json

@@ -0,0 +1,33 @@
+{
+    "name": "Gvcci",
+    "comment": "Gvcci generated theme.",
+    "foreground-color": "#a3d08f",
+    "background-color": "#14100c",
+    "use-theme-colors": false,
+    "use-highlight-color": false,
+    "highlight-foreground-color": "#14100c",
+    "highlight-background-color": "#5ad119",
+    "use-cursor-color": false,
+    "cursor-foreground-color": "#429a13",
+    "cursor-background-color": "#429a13",
+    "use-badge-color": true,
+    "badge-color": "#a3d08f",
+    "palette": [
+        "#342b1f",
+        "#74613d",
+        "#3b6f3d",
+        "#59684e",
+        "#489352",
+        "#5ba72e",
+        "#53774a",
+        "#d3ebc6",
+        "#544532",
+        "#9c8252",
+        "#509753",
+        "#788b67",
+        "#64b56f",
+        "#78cd45",
+        "#6d9d61",
+        "#f6fbf4"
+    ]
+}