Convert simple-icons manual backup from submodule to tracked files

logos/simple-icons.manual-backup-20251123-234134/.husky/pre-commit

@@ -0,0 +1,21 @@
+#!/usr/bin/env sh
+# ^^^^^^^^^^^^^^^ Husky doesn't require this shebang,
+# but code editors need it to recognize the file as a script.
+
+# Format and add the changes to the staging area
+npm run format
+git add --update
+
+# POSIX shell (sh) run time parameters.
+#   -e: Exit immediately if a command exits with a non-zero status.
+#   -u: Treat unset variables as errors when substituting.
+set -eu
+
+# Track exit code in case that we want to add other lints in the future
+EXITCODE=0
+
+# If there are changed icons, lint them with SVGLint
+changed_icons=$(git diff --cached --name-only --diff-filter=ACM 'icons/' | xargs)
+[ -n "$changed_icons" ] && { npm run svglint:base -- $changed_icons || EXITCODE=$?; }
+
+exit $EXITCODE