Give memory back after conversions and release the main window in the tray - #122

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/cache/restore@v4, actions/checkout@v4, actions/setup-dotnet@v4, actions/upload-artifact@v4. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

Dereference of a possibly null reference.

Dereference of a possibly null reference.

Dereference of a possibly null reference.

XML comment has badly formed XML -- 'Expected an end tag for element 'param'.'

Nullable value type may be null.

Dereference of a possibly null reference.

Dereference of a possibly null reference.

Dereference of a possibly null reference.

Dereference of a possibly null reference.