1066 bug dataexchange query failed on nullable datetime

[kuh0005]

This pull request introduces several UI improvements and project structure updates, mainly focusing on enhancing dropdown interactions, adding new test and styling projects to the solution, and updating package dependencies. The most significant changes are summarized below:

UI/UX Improvements:

• Updated dropdown button click handlers in LoginDisplay.razor and VisualComposerContainer.razor to use the asynchronous ToggleAsync method for better UI responsiveness. [1] [2]
• Major refactor of the data exchange view in DataExchangeView.razor to improve filtering, sorting, and advanced query options. This includes new dropdowns for sorting/filtering, advanced filter toggles, and distributed query controls, along with improved button styling. [1] [2]

Solution and Project Structure:

• Added new test projects (axopen_data_distributed_tests_l4, axopen.data.distributed.tests_l4) and a new styling project (AXOpen.Operon.Blazor) to the solution file data.sln, including appropriate folder structure and build configurations. [1] [2] [3] [4] [5] [6] [7] [8]

Dependency Updates:

• Updated the Inxton.Operon package version from 0.3.0-alpha.114 to 0.3.0-alpha.138 in Directory.Packages.props.

Code Cleanliness:

• Removed unnecessary or duplicate @using statements in several .razor files to tidy up the codebase. [1] [2] [3]

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These changes collectively improve the maintainability, usability, and scalability of the project.