Fix/#361-B: init 후에도 Caret이 유지되게 해결 (#364)

* fix: init 후에도 Caret이 유지되게 해결

Resolve: #361

* refactor: TextBlock에서 onClick 함수 제거

Resolve: #361

Author: dohun31

client/src/components/Block/TextBlock.tsx

@@ -90,6 +90,8 @@ function TextBlock({
     if (!blockRef.current) return;
 
     blockRef.current.innerText = readCRDT();
+
+    updateCaretPosition();
   };
 
   const onInsert = (op: RemoteInsertOperation) => {

client/src/hooks/useOffset.ts

@@ -53,8 +53,12 @@ export function useOffset(blockRef: React.RefObject<HTMLParagraphElement>) {
     }
   };
 
+  const onClick = () => {
+    setOffset();
+  };
+
   const offsetHandlers = {
-    onClick: setOffset,
+    onClick,
     onBlur: clearOffset,
     onKeyUp: onArrowKeyup,
   };