chore: rename smart-components -> modules (#511)

### Description Of Changes

Ranamed a legacy terminology `smart-components` to `modules`

Author: AhyoungRyu

architecture.md

@@ -5,11 +5,11 @@
 ## Main concepts
 
 * We will use a flux architecture using `useReducer` hook. The  sdk, connection, config and user data will be mainly stored in a global store(context) in `SendbirdProvider`(`/src/lib/Sendbird.jsx`)
-* ChannelList(`./src/smart-components/ChannelList`) contains list of channels
-* Channel(`./src/smart-components/Conversation`) contains list of messages inside a channel
+* ChannelList(`./src/modules/ChannelList`) contains list of channels
+* Channel(`./src/modules/Conversation`) contains list of messages inside a channel
 * The store can be accessed down in component heirarchy using `withSendbird (`/src/lib/SendbirdSdkContext.jsx`) as a higherOrderComponent
 * Store should be modified and accessed using dux-esque components in `You can find them in /dux whenever applicable`. Each component should have actionType, reducer, thunks, eventListeners and initialState
-* SmartComponents(`src/smart-components`) are components that can access the global state and dispatch actions
+* SmartComponents(`src/modules`) are components that can access the global state and dispatch actions
 
 ## Usage