issue-3514893: fix add rows/columns button within paragraphs & set table max...

Brahim Khouyrequested to merge
issue/ultimate_table_field-3514893:3514893-column-or-row into 1.0.x

issue-3514893: fix add rows/columns button within paragraphs & set table max width to 900px inside paragraph widget

Closes #3514893

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