Can't resize the "Label" column in Receive Payment

[Inventatorul1]

Bug Report

Current behavior
I can't find a way to resize the "Label" column in Receive Payment and Favourites

Expected behavior
It should be possible to resize it.

Screenshots

Gridcoin version

[jamescowens]

This is because it was coded that way... from addressbookpage.cpp:
// Set column widths
ui->tableView->horizontalHeader()->setSectionResizeMode(AddressTableModel::Label, QHeaderView::Stretch);
ui->tableView->horizontalHeader()->setSectionResizeMode(AddressTableModel::Address, QHeaderView::ResizeToContents);
ui->tableView->horizontalHeader()->resizeSection(AddressTableModel::Address, 320);

This was similar to what was done in the transaction history table and it is pretty primitive. If folks like what I did in #2520, I will do something similar here.