Updated both dark and light XML syntax definition files to include the .axml extension, ensuring proper syntax highlighting for files with this extension.
Introduces 'Reopen as source code' and 'Reopen as image preview' options in the MoreMenu for SVG and HTML files, enabling users to switch between ImageViewer and TextViewer plugins. Updates translation files to support new menu items in multiple languages and refactors related plugin code for extensibility.
