txt viewer support auto wrap (#7815)

* txt file support wrap line

* external txt file support wrap line

* change more icon

frontend/src/components/file-view/file-view.js

@@ -156,6 +156,8 @@ class FileView extends React.Component {
                   toggleDetailsPanel={this.toggleDetailsPanel}
                   setImageScale={this.props.setImageScale}
                   rotateImage={this.props.rotateImage}
+                  lineWrapping={this.props.lineWrapping}
+                  updatelineWrapping={this.props.updatelineWrapping}
                 />
               }
             </div>