Collected small changes and fixes

[akohlmey]

Summary

This pull request combines multiple small changes and bug fixes that do not warrant individual pull requests

Related Issue(s)

N/A

Author(s)

Axel Kohlmeyer, Temple U

Licensing

By submitting this pull request, I agree, that my contribution will be included in LAMMPS and redistributed under either the GNU General Public License version 2 (GPL v2) or the GNU Lesser General Public License version 2.1 (LGPL v2.1).

Backward Compatibility

N/A

Implementation Notes

The following individual changes are included:

• avoid segfault in multi-threaded neighbor lists, if the number of threads has been reduced during the executable run (e.g. when using LAMMPS GUI)
• small doc updates for fix srd, pair style reaxff, and pair style tmd/ilp
• port of LAMMPS GUI to Qt6
• replace entire word under cursor with auto-completion
• avoid infinite loop in StdCapture and instead time out after one second
• avoid multiple out of bounds memory accesses in LAMMPS GUI detected by compiling to Qt with assertions enabled
• auto detect OpenMP availability when compiling LAMMPS GUI as standalone executable

Post Submission Checklist

• The feature or features in this pull request is complete
• Licensing information is complete
• Corresponding author information is complete
• The source code follows the LAMMPS formatting guidelines
• Suitable new documentation files and/or updates to the existing docs are included
• The added/updated documentation is integrated and tested with the documentation build system
• The feature has been verified to work with the conventional build system
• The feature has been verified to work with the CMake based build system
• Suitable tests have been added to the unittest tree.
• A package specific README file has been included or updated
• One or more example input decks are included

[stanmoore1]

I approve