Liu Yue

https://github.com/TonyGermaneri/canvas-datagrid/blob/4e1e3dbe7ba70a3367bcefa38188af70cbb9f40f/lib/draw.js#L2362 @ndrsn , I am not sure is it a bug or feature. Because I think the user hard to know where is the frozen marker now if the marker...

### Steps to reproduce the problem. https://user-images.githubusercontent.com/4303130/149649274-fe459f50-d7c7-4953-9a80-9564651c04c2.mp4

The behavior of the menu item for hiding column becomes incorrect after the user reordered columns

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### Steps to reproduce the problem. https://user-images.githubusercontent.com/4303130/149609204-82f15b6a-49e6-4480-a6d4-75ac3d8f28f5.mp4 It is caused by `self.getSchema()[e.cell.columnIndex].hidden = true;` in `contextMenu.js`. And I will fix this bug later

### Steps to reproduce the problem. ### Specifications like the version of the project, operating system, or hardware. - `v0.3.25`

1. use --disable-extensions to launch test (avoid test be failure cause other extensions) 2. give more timeout and slow value for Github API test (because network request be sometimes slow)...

### Preflight Checklist * [x] I agree to follow the [Code of Conduct](https://github.com/jgraph/drawio-desktop/blob/master/CODE_OF_CONDUCT.md) that this project adheres to. * [x] I have searched the issue tracker for a feature request...

docs: fix incorrect tmux configurations in README.md

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Awesome project! I just installed it and configured it by following your README document. I realized that there are some incorrect configurations that cannot work correctly and will cause errors...