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/japan_cherry_blossoms_4k/columns-with-headers.txt

@@ -0,0 +1,25 @@
+Background
+#eeecd0
+
+Foreground
+#000000
+
+Normal ANSI Colors
+#4a481c
+#72614b
+#51683d
+#646346
+#4f6b60
+#948905
+#788c1c
+#e9dfc9
+
+Bright ANSI Colors
+#706b29
+#988163
+#6f8e53
+#888760
+#688f80
+#cfc006
+#a4bf26
+#fbf9f4