The new automatic conversion from Bootstrap grid to tables allows us to
convert `mass_mailing` templates from their old table structures to
Bootstrap grid (as the reverse conversion will now be applied on save).
General heuristic for the conversion of templates:
| **Table** | **Bootstrap** |
|:-------------------:|:------------------------------------------:|
| `<table>` | `<div class="container">` |
| `<thead>` | _(removed)_ |
| `<tbody>` | _(removed)_ |
| `<tfoot>` | _(removed)_ |
| `<tr>` | `<div class="row">` |
| `<th>` | `<div class="col o_col_head">` |
| `<td>` | `<div class="col">` |
| `<td width="_n_%">` | `<div class="col-_o_">` where o ~= 12n/100 |
| `cellspacing` | _(removed but always added back to table)_ |
| `cellpadding` | _(removed but always added back to table)_ |
| `border` | _(removed but always added back to table)_ |
Some styles had to be changed to account for the difference in the HTML.
task-2554899
X-original-commit: c26dac24c5fd15165935c770175c1b6f87aaad41
Part-of: odoo/odoo#77724
Antoine Guenet
5de7bdb924