update Japanese text

src/containers/TheHeaderDropdown.js

@@ -23,9 +23,7 @@ const TheHeaderDropdown = () => {
       direction="down"
     >
       <CDropdownToggle className="c-header-nav-link" caret={false}>
-        <div className="c-avatar">
-          Account
-        </div>
+        アカウント
       </CDropdownToggle>
       <CDropdownMenu className="pt-0" placement="bottom-end">
         <CDropdownItem
@@ -34,11 +32,11 @@ const TheHeaderDropdown = () => {
           color="light"
           className="text-center"
         >
-          <strong>Account</strong>
+          <strong>アカウント</strong>
         </CDropdownItem>
         <CDropdownItem onClick={launchsso}>
           <CIcon name="cil-bell" className="mfe-2" />
-          SSO Login
+          SSO ログイン
         </CDropdownItem>
       </CDropdownMenu>
     </CDropdown>