Fix table selector and resizer insertion

[Andres-CT98]

Description:

Redo of #1919

The Table selector and resizer are currently inserted on the document, thus putting them on a different container to the table they belong to. This creates issues in some scenarios such as when a dialog is created above the document with a high z-index. They also have a fixed position which causes issues in some scrolling scenarios, where they stayed fixed in place instead of moving or disappearing.

Fix

Changed the insertion point of where the squares are located. The Selector and Resizer are inserted to where the Plugin specifies, if no selector is given it will default to the previous behaviour. The intent is for the selector to contain the editor. Additionally added a check for the resizer to not render if out of editor bounds.

Warnings and implications

• The same scroll scenario where the squares remained on screen still remained due to the use of fixed position. Both operations are not functional, but it is a rare scenario to encounter.
• The same issue exists in the table Inserters and cell resizers, which will be fixed the same way on a different PR. Fixed in Fix Cell resizers and Table Inserters #2007
• The name of the Plugin 'TableResize' could be changed, as it is very similar to 'TableResizer' and is not descriptive of its full function..