refactor(components): Exclude Auth Token for External Avatar Images

This patch focuses on resolving issues encountered with avatar image loading, specifically addressing the challenges related to CORS (Cross-Origin Resource Sharing) errors.

Changes:
- Removed the `isAuthTokenRequired` flag from the `AttachmentModal` component in various files, including `ProfilePage.js`, `RoomHeaderAvatars.js`, and `DetailsPage.js`. This change is crucial for loading of avatar images that are hosted externally.

Rationale:
- The primary purpose of this modification is to streamline the loading process for avatars by removing the unnecessary inclusion of authentication tokens in requests for external images. This approach aligns with standard practices for handling externally hosted content and aims to enhance compatibility and performance.
- Raised a question here as whether there are cases of avatar images that need authentication: https://github.com/Expensify/App/pull/24425/files#r1404352872

This update is expected to resolve the CORS errors associated with avatar image loading, thereby improving the overall functionality and user experience in our application.

src/components/RoomHeaderAvatars.js

@@ -33,7 +33,6 @@ function RoomHeaderAvatars(props) {
             <AttachmentModal
                 headerTitle={props.icons[0].name}
                 source={UserUtils.getFullSizeAvatar(props.icons[0].source, props.icons[0].id)}
-                isAuthTokenRequired
                 isWorkspaceAvatar={props.icons[0].type === CONST.ICON_TYPE_WORKSPACE}
                 originalFileName={props.icons[0].name}
             >
@@ -78,7 +77,6 @@ function RoomHeaderAvatars(props) {
                         <AttachmentModal
                             headerTitle={icon.name}
                             source={UserUtils.getFullSizeAvatar(icon.source, icon.id)}
-                            isAuthTokenRequired
                             originalFileName={icon.name}
                             isWorkspaceAvatar={icon.type === CONST.ICON_TYPE_WORKSPACE}
                         >

src/pages/DetailsPage.js

@@ -134,7 +134,6 @@ function DetailsPage(props) {
                                 <AttachmentModal
                                     headerTitle={details.displayName}
                                     source={UserUtils.getFullSizeAvatar(details.avatar, details.accountID)}
-                                    isAuthTokenRequired
                                     originalFileName={details.originalFileName}
                                 >
                                     {({show}) => (

src/pages/ProfilePage.js

@@ -159,7 +159,6 @@ function ProfilePage(props) {
                             <AttachmentModal
                                 headerTitle={displayName}
                                 source={UserUtils.getFullSizeAvatar(avatar, accountID)}
-                                isAuthTokenRequired
                                 originalFileName={originalFileName}
                                 fallbackSource={fallbackIcon}
                             >