Docblock improvements for WP 6.8

[desrosj]

Previously:

• #61608 (6.7)
• #60699 (6.6)
• #59651 (6.5)
• #58833 (6.4)
• #57840 (6.3)
• #56792 (6.2)
• #55646 (6.1)
• #54729 (6.0)
• #53399 (5.9)
• #52628 (5.8)
• #51800 (5.7)
• #50768 (5.6)
• #49572 (5.5)
• #48303 (5.4)
• #47110 (5.3)
• #46543 (5.2)
• #42505 (5.1)
• #41017 (4.9)
• #39130 (4.8)
• #37770 (4.7)
• #32246 (4.6)

[SergeyBiryukov]

In 59291:

Docs: Adjust comments about set_time_limit() per the documentation standards.

Includes splitting long comments into multiple lines and moving a few comments above the function_exists() check for more consistent placement.

Follow-up to [59039], [59288].

See #62281.

[SergeyBiryukov]

In 59333:

Docs: Correct @param tag in untrailingslashit() to match the parameter name.

Follow-up to [54927].

Props justlevine.
See #52217, #62281.

[SergeyBiryukov]

In 59334:

Docs: Correct @param type in fix_phpmailer_messageid().

Follow-up to [48033].

Props justlevine.
See #52217, #62281.

[SergeyBiryukov]

In 59336:

Docs: Add missing void to DocBlock @return types.

This commit adds missing void return types to (parent) methods that can explicitly return void as one of their conditional paths.

Addressed methods:

• WP_Privacy_Requests_Table::column_status()
• WP_Recovery_Mode::handle_error()
• WP_Widget::form() — unlike the others, it's the child classes that return void when the method is correctly implemented.

Note: @return void (where void is the single type returned) should not be used outside the default bundled themes and the PHP compatibility shims included in WordPress Core, as per the ​documentation standards.

Follow-up to [30382], [42967], [43256], [44973], [45448].

Props justlevine.
See #52217, #62281.

[johnbillion]

In 59405:

Docs: Correct the spelling of silicon in the local development environment readme.

See #62281