i18n: Avoid using HTML tags in translation strings (wp-admin/plugins.php)

[ramiy]

See the attached patch.

[SergeyBiryukov]

The current string is consistent with the other plugin action messages​:

• The selected plugin(s) have been <strong>deleted</strong>.
• Plugin <strong>activated</strong>.
• Selected plugins <strong>activated</strong>.
• Plugin <strong>deactivated</strong>.
• Selected plugins <strong>deactivated</strong>.

However, similar theme action messages​ don't have the markup:

• Settings saved and theme activated.
• New theme activated.
• Theme deleted.

These are some of the oldest strings in WordPress (Plugin <strong>activated</strong> was introduced in [1071]; New theme activated was introduced in [1655]), and it looks like they have always been like this.

For consistency, we should probably remove the markup from all these plugin messages, unless someone can think of a good reason to keep it.

[ramiy]

For consistency, we should probably remove the markup from all these plugin messages, unless someone can think of a good reason to keep it.

No reason to keep the markup.

If you will check the other action messages you will find the same result (user screen / terms screen / post screen / settings screen / etc.). We rarely emphasis the action. I guess you can find few more strings emphasizing the action, but they are the exception, and we should change them too.

[SergeyBiryukov]

In 45432:

I18N: Remove unnecessary markup from plugin action messages, for consistency with the rest of the admin.

Props ramiy.
Fixes #47238.