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

src_files/imports/themes-omarchy/osaka-jade/waybar.css

@@ -0,0 +1,15 @@
+/*
+  name hyprlock.conf (under osaka-jade theme directory)
+  authors: David Heinemeier Hansson and Justin Lowry
+  copyright: David Heinemeier Hansson
+  license: MIT
+  upstream: https://github.com/basecamp/omarchy/blob/master/themes/osaka-jade/waybar.css
+
+  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
+*/
+
+
+@define-color foreground #e6d8ba;
+@define-color background #11221C;