Improve Linux clipboard support and file handling (#872)

app/MindWork AI Studio/wwwroot/changelog/v26.7.3.md

@@ -8,12 +8,14 @@
 - Improved the "My Tasks Assistant": you can now provide one or more documents in addition to text or use documents alone when asking to identify tasks.
 - Improved update guidance for Flatpak installations and added an enterprise option that lets organizations manage updates entirely through their IT department.
 - Improved secure API-key storage diagnostics on Linux. AI Studio now provides specific guidance when the default password collection is missing or locked, a password-manager prompt is dismissed, or no compatible Secret Service is available.
+- Improved the file dialogs to prevent opening multiple times when you click "Open" or "Save" multiple times in a row.
 - Fixed an issue that could leave AI Studio unresponsive after waking the computer from sleep. Yes, we know this was an annoying bug, and we apologize for the inconvenience.
 - Fixed connections to internal HTTPS services and enterprise configuration servers that use organization-provided root certificates on Linux.
 - Fixed enterprise configuration plugins from Windows-created ZIP files may not load correctly on Linux when the ZIP contained plugin files inside a folder.
 - Fixed the global voice recording shortcut on Linux so it also works outside AI Studio on supported Wayland desktops.
 - Fixed voice recording and transcription on Linux.
 - Fixed copied content from AI Studio not remaining available on the clipboard on Linux.
+- Fixed dragging and dropping files from the home folder into the Linux Flatpak version.
 - Fixed being able to switch document analysis policies while an analysis or media transcription was still in progress.
 - Fixed file extension handling so files are recognized correctly regardless of uppercase or lowercase letters in their extensions. Thanks, Paul Schweiß, for reporting this issue.
 - Fixed AI Studio failing to start on Linux systems & showing an outdated version on the Flatpak page.