Update tables to fix mobile labels

[pwright64]

Moved "properties" and "methods" to table titles from table entries, splitting tables at these points; removed class names from table entries; and updated table id's to match new tables. This fixes the following issue: On mobile, table is collapsed and table head entries are used as :before label elements for table body entries, in a cycling fashion (see web-php/public/js/common.js line 835-851). Table had class names as head entries and "methods" and "properties" as body entries, resulting in incorrect labels for body entries.

[kamil-tekiela]

Thank you for this PR. However, I propose an alternative: remove this page altogether. I don't know why we have it. It's often out of sync with the rest of the manual. The individual pages for each class are better. I suppose it was for people using only the procedural style functions, but I don't think even they would find this page very useful. The DateTime extension has this done a bit differently https://www.php.net/manual/en/book.datetime.php. Perhaps we should do something similar in mysqli: list all functions as aliases of the methods and link to their pages without a table or description.

[kamil-tekiela]

On top of that, we have this page https://www.php.net/manual/en/ref.mysqli.php confusingly named and equally useless. Are they all the aliases available? Are they all deprecated? No, it's neither.

[pwright64]

I see what you're saying, and that explains why I had trouble finding an analogous page to compare with. So: getting rid of this page, splitting the alias and deprecated section into functions and deprecated, and adding the missing functions pages, seems like a sensible course of action. If it's helpful, I could work on creating pages for the procedural functions as aliases with links to the OOP pages, like the date/time page. Although that practice seems wasteful. It would be nice if we could use symlinks or redirects instead.