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/finding_nemo/columns-with-headers.txt

@@ -0,0 +1,25 @@
+Background
+#0e1021
+
+Foreground
+#76d3e9
+
+Normal ANSI Colors
+#1e2045
+#c24405
+#7063c8
+#a79808
+#4f945b
+#ab924c
+#36a5b3
+#c2dcef
+
+Bright ANSI Colors
+#2d3169
+#f95a0c
+#968cdc
+#e2cd0b
+#6db37a
+#c3ad72
+#58c1ce
+#f3f8fc