fix: reordering or creating a row while sorts are active

[richardshiue]

Inform the user why inserting a new row before or after a row, or reordering rows is not allowed when there are sorts configured for the current grid view; and give an option to remove sorting in order to continue.

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PR Checklist

• [x] My code adheres to AppFlowy's Conventions
• [x] I've listed at least one issue that this PR fixes in the description above.
• [ ] I've added a test(s) to validate changes in this PR, or this PR only contains semantic changes.
• [ ] All existing tests are passing.