Ship the per-user config, and recommend a font that exists

Two things anyone installing v0.1.0 would have hit.

The per-user files were listed in install-assets.sh as installed 'by
hand', which meant a clean machine logged in to a bare compositor with
nothing drawn on it and no binding that opened anything. They are now
installed as a skeleton under share/hyprcosmic/skel, laid out exactly as
they sit under ~/.config, and the session copies what is missing at
login. The audit still forces every file under config/ into exactly one
list, so this could not be quietly skipped again.

theme.css, theme.rasi and local.rasi are new and deliberately empty. They
are the relative @imports of style.css and config.rasi, and a missing
@import is fatal to both consumers rather than a warning they skip: GTK
fails the whole stylesheet, and rofi reports the error in place of the
launcher. Every colour they could define already has a default from
palette.css and palette.rasi, so empty is the correct content until
import-theme writes them. style.css's own header has promised 'a sibling
file we create at install time' since it was written; now there is one.

Recommends: nerd-fonts named a package that is in no Fedora repository,
so it could never be satisfied and the font never arrived -- silently,
which is what Recommends does when it cannot resolve. Fedora has no Nerd
Font at all: texlive-inconsolata-nerd-font lands under texmf-dist and
kitty's SymbolsNerdFont under /usr/lib64/kitty, and fontconfig scans
neither. Recommend font(notosansmono) instead, the fallback rules.rasi
already names, and say in the README how to install the glyphs by hand.

packaging/fedora/hyprcosmic.spec

@@ -81,8 +81,22 @@ Requires:       rofi-wayland
 # unsatisfiable dependency is not.
 Recommends:     awww
 
-# Nerd Font glyphs are most of what the bar draws.
-Recommends:     nerd-fonts
+# Nerd Font glyphs are most of what the bar and the launcher draw, and Fedora
+# has nothing that provides them. This line used to say `nerd-fonts`, which is
+# not a package in any Fedora repository -- so it could never be satisfied, and
+# the fonts never arrived, silently, because that is what Recommends does when
+# it cannot resolve. The two patched fonts Fedora does ship are no help either:
+# texlive-inconsolata-nerd-font lands under texmf-dist and kitty's
+# SymbolsNerdFont under /usr/lib64/kitty, and fontconfig scans neither path.
+#
+# So recommend the fallback the configuration actually names. rules.rasi asks
+# for "JetBrainsMono Nerd Font, Noto Sans Mono": this is the second of the two.
+# It cannot draw a single glyph, but it decides what the text is set in instead
+# of leaving that to whatever fontconfig happens to pick. A virtual provide
+# rather than a name, because two packages carry it and either will do.
+#
+# The glyphs themselves have to be installed by hand. See README.md.
+Recommends:     font(notosansmono)
 
 %description
 HyprCosmic is a fork of the COSMIC desktop that takes its configuration in