i18n: Merge similar translation strings - drop-ins

[ramiy]

Site Health introduced a new string explaining what are drop-in plugins. We already have a string explaining the same thing, located at the drop-ins tab in the plugins page.

We can rewrite the two strings and use them in both sections.

[desrosj]

Moving Site Health tickets into their lovely new home, the Site Health component.

[Clorith]

I agree, different texts in various places here makes little sense.

What about something as follows, which merges the two together, so they can reliably be used in all locations:

Drop-ins are single files found in the wp-contentdirectory that replace or enhance WordPress features in ways that are not possible for traditional plugins.

[garrett-eclipse]

patch to merge strings

[garrett-eclipse]

Screen of updated verbiage on Plugins > Drop-in list view

[garrett-eclipse]

Updated string in Site Health > Info > Drop-ins

[garrett-eclipse]

Thanks for flagging this @ramiy and for the suggested text @Clorith I've uploaded 47247.diff to address this.

[Clorith]

Reading over it, it needs some commas to be easier to read (if this is the string we want to go with, mind you, I'd leave it for a day or two so others can voice in on this, since it also touches strings that have been in core for quite a while);

Drop-ins are single files, found in the wp-content directory, that replace or enhance WordPress features in ways that are not possible for traditional plugins.

[garrett-eclipse]

Updated to add commas for better reading.

[garrett-eclipse]

Thanks @Clorith 47247.2.diff adds in the commas.
Added needs-copy-review to get feedback from @marybaum and dev-feedback to flag the concern of the age of one of the strings updated.

[ramiy]

@Clorith @garrett-eclipse I like the new string.

[Clorith]

47247.2.diff​ looks good to go, there's been no mention of there being problems with this.

[SergeyBiryukov]

In 45905:

Site Health: Merge two similar strings explaining what drop-in plugins are.

Props garrett-eclipse, ramiy, Clorith.
Fixes #47247.