desktop: refine theming, workspaces, and utilities

- switch GTK font to GeistMono Nerd Font Propo 9 and drop GTK4 CSS overrides
- add named Hyprland workspaces/keybinds and Ghostty quick terminal; adjust screenshot binding
- update Waybar workspace icons/sorting; tweak Neovim transparency, Owlry/Qt6CT, and ROCm env
- add curated wallpaper sets for DP-1/DP-2 and new Hyprland toggle/screenshot helper scripts

dot_config/nvim/colors/apex-aeon.lua

@@ -32,6 +32,10 @@ function M.load()
   vim.o.background = "light"
   vim.g.colors_name = "apex-aeon"
 
+  -- Transparency: 80% opaque for floating UI
+  vim.o.winblend = 20
+  vim.o.pumblend = 20
+
   local p = M.palette
   local groups = {
     -- CANVAS & UI -----------------------------------------------------------

dot_config/nvim/colors/apex-neon.lua

@@ -32,6 +32,10 @@ function M.load()
   vim.o.background = "dark"
   vim.g.colors_name = "apex-neon"
 
+  -- Transparency: 80% opaque for floating UI
+  vim.o.winblend = 20
+  vim.o.pumblend = 20
+
   local p = M.palette
   local groups = {
     -- CANVAS & UI -----------------------------------------------------------