Fix Neovim theme symlink pointing at the Omarchy 4 theme location (#6318)

* Address upgrade migration review feedback

* Only promote firmware during kernel transitions

* Remove the dropped packages preventing installation

* Fix Neovim theme symlink pointing at the Omarchy 4 theme location

omarchy-nvim briefly created ~/.config/nvim/lua/plugins/theme.lua linked
to ~/.local/state/omarchy/current, which doesn't exist on Omarchy 3.x,
so fresh installs errored on nvim startup with "Failed to load
plugins.theme" (#6309). Retarget the link to ~/.config/omarchy/current
unless the user has already customized it.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

install/config/hardware/intel/sof-firmware.sh

@@ -3,9 +3,6 @@
 # the DSP; without it the DSP fails to boot and PipeWire exposes only a Dummy
 # Output sink. This affects Arrow Lake, Meteor Lake, Tiger Lake, Alder Lake,
 # Wildcat Lake, Panther Lake, and similar platforms.
-#
-# omarchy-pkg-add is idempotent, so systems that already pull sof-firmware in
-# via linux-ptl (Panther Lake XPS) are unaffected.
 
 if omarchy-hw-intel-sof; then
   omarchy-pkg-add sof-firmware