Leave Hermes Desktop's HUD the transparency it draws itself

The HUD is a frameless Electron window that paints its own per-pixel
transparency. Under the default rules it gets a compositor border and Omarchy's
window opacity on top, which turns the compact prompt into an outlined, muddy
canvas.

Scoped to the HUD by title, so the main Hermes window keeps the ordinary
treatment.

Co-authored-by: Luiz Filipe <moresco.luiz@gmail.com>
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

default/hypr/apps/hermes.lua

@@ -0,0 +1,7 @@
+-- Hermes Desktop's frameless HUD manages its own geometry.
+o.window({ class = "^Hermes$", title = "^Hermes HUD$" }, {
+  tag = "-default-opacity",
+  float = true,
+  border_size = 0,
+  opacity = "1 1",
+})