Add auto-initialization with default config

Gemfile.lock

@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    typesensual (0.3.0)
+    typesensual (0.3.1)
       activesupport (>= 6.1.5)
       paint (>= 2.0.0)
       typesense (>= 0.13.0)

lib/typesensual.rb

@@ -19,14 +19,16 @@
 
 class Typesensual
   class << self
-    attr_accessor :config
-
     def client
       config&.client
     end
 
     def configure(&block)
-      self.config = Typesensual::Config.new(&block)
+      @config = Typesensual::Config.new(&block)
+    end
+
+    def config
+      @config ||= Typesensual::Config.new
     end
 
     # Get the collections that match the alias name

lib/typesensual/version.rb

@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 class Typesensual
-  VERSION = '0.3.0'
+  VERSION = '0.3.1'
 end