feat(config): fish configs

config/fish/functions/__macos_mac_flushdns.fish

@@ -0,0 +1,19 @@
+# @halostatue/fish-macos/functions/__macos_mac_flushdns.fish:v7.0.0
+
+function __macos_mac_flushdns
+    argparse --name 'mac flushdns' h/help -- $argv
+    or return 1
+
+    if set --query _flag_help
+        echo 'Usage: mac flushdns [options]
+
+Flushes the DNS cache. Requires sudo.
+
+Options:
+  -h, --help               Show this help'
+        return 0
+    end
+
+    sudo dscacheutil -flushcache
+    and sudo killall -HUP mDNSResponder
+end