Changed all Plugin classes and PluginManager to be sealed, preventing further inheritance. This improves code safety and clarifies the intended usage of these classes.
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.
Use following option in `QuickLook.Plugin.ImageViewer.config` to fix the issue:
```xml
<?xml version="1.0" encoding="utf-8"?>
<Settings>
<UseColorProfile>false</UseColorProfile>
<UseNativeProvider>false</UseNativeProvider>
</Settings>
```
* Replace supported image extension list with image detection via MagickImageInfo.
* Change ImageViewer priority to -4.
Change VideoViewer priority to -3 and detect audio/video via MediaInfo instead of file extensions.
* Make mediaInfo a class static and initialize once.
Add some notes about MediaInfo Open and Close.
* Remove try/catch from Prepare and let it be handled in caller.
If there was an exception due to MediaInfo it would have already occurred in CanHandle.
* Upgrade ImageMagick to latest
* Only check extension for well known image and animated image types.
For other image formats, let ImageMagick try to detect by file content.
Upgrade to latest Magick.NET
Co-authored-by: Frank Becker <frank.becker@thoughtexchange.com>
