feat: add Dotbot

config/fish/functions/fs.fish

@@ -0,0 +1,13 @@
+function fs --description "Determine size of a file or total size of a directory"
+    if du -b /dev/null >/dev/null 2>&1
+        set arg -sbh
+    else
+        set arg -sh
+    end
+
+    if test -n "$argv"
+        du $arg -- $argv
+    else
+        du $arg .[^.]* *
+    end
+end