Add theme-set/switching logic, and minor nvim, tmux, obsidian changes

src_files/imports/themes-omarchy/gruvbox/hyprland.conf

@@ -0,0 +1,21 @@
+## name hyprland.conf (under gruvbox theme directory)
+## author: David Heinemeier Hansson
+## copyright: David Heinemeier Hansson
+## license: MIT
+## upstream: https://github.com/basecamp/omarchy/blob/master/themes/gruvbox/hyprland.conf
+
+# # This file is copied from a theme from Omarchy (https://github.com/basecamp/omarchy).
+# Licensed under the MIT License. See the original LICENSE file for details at:
+# https://github.com/basecamp/omarchy/blob/master/LICENSE
+
+##########################################################################################
+
+$activeBorderColor = rgb(a89984)
+
+general {
+    col.active_border = $activeBorderColor
+}
+
+group {
+    col.border_active = $activeBorderColor
+}