gtk: Update settings.ini

It turns out that desktop environments like GNOME and Plasma will
re-write the GTK settings.ini regardless of whether or not it is
actually used. To avoid diffing issues, I've gone ahead and replaced
my commented settings.ini with the one formatted by KDE Plasma.

Note that the current settings.ini file consists of all the settings you
need in a modern GTK environment. Be wary of programs that attempt to
add legacy options to this file, such as kde-gtk-config.

gtk/.config/gtk-3.0/settings.ini

@@ -1,33 +1,10 @@
-# New Start: A modern Arch workflow built with an emphasis on functionality.
-# Copyright (C) 2018 Donovan Glover
-#
-# https://developer.gnome.org/gtk3/stable/GtkSettings.html
-
 [Settings]
-
-# ===========================
-# ========== theme ==========
-# ===========================
-
-gtk-theme-name        = Adapta
-gtk-icon-theme-name   = Papirus-Adapta
-
-# ============================
-# ========== cursor ==========
-# ============================
-
-# Use the same cursor as KDE
-gtk-cursor-theme-name = breeze_cursors
-
-# Use a large cursor size for HiDPI
-gtk-cursor-theme-size = 36
-
-# ==========================
-# ========== font ==========
-# ==========================
-
-gtk-font-name         = Cantarell Regular 10
-gtk-xft-hinting       = 1
-gtk-xft-antialias     = 1
-gtk-xft-hintstyle     = hintfull
-gtk-xft-rgba          = rgb
+gtk-cursor-theme-name=breeze_cursors
+gtk-cursor-theme-size=36
+gtk-font-name=Cantarell Regular 10
+gtk-icon-theme-name=Papirus-Adapta
+gtk-theme-name=Adapta
+gtk-xft-antialias=1
+gtk-xft-hinting=1
+gtk-xft-hintstyle=hintfull
+gtk-xft-rgba=rgb