Bind monospace to a Nerd Font and keep panels clear of the bar

docs/install.md

@@ -35,7 +35,13 @@ with `--check`.
    resolves cannot cost you the other hundred and the config, service and login
    steps below. See [packages.md](packages.md).
 4. **Config** is copied into `~/.config`: `hypr/`, the themed app configs,
-   `blob/shell.json`, the uwsm environment, and the icon font.
+   `blob/shell.json`, the uwsm environment, `fontconfig/fonts.conf`, and the
+   icon font, and the font cache is refreshed. The shell draws every icon as a
+   Nerd Font glyph in the `monospace` family, and on a fresh Arch install
+   fontconfig resolves that to a font with no such glyphs, so the bar and its
+   panels come up full of blanks. `fonts.conf` binds `monospace` to
+   `JetBrainsMono Nerd Font`; `blob font set` rewrites the same file, and the
+   installer then reports it as a local change and keeps your choice.
    `session/profile.sh` also goes to `/etc/profile.d/blob.sh`, which sources
    `session/env-bootstrap` and is what puts `blob` on `PATH` in a login shell.
    Without it `BLOB_PATH` and `$BLOB_PATH/bin` are only set by