Remove target="_blank" from help tab in privacy-related screens

[sabernhardt]

Related: #23432, #43994, #52970

Several help links have stopped opening in a new tab/window (ticket:23432#comment:36). Similarly, the links for how to add plugin support of either exporting or erasing personal data should not force opening in a separate tab.

[sabernhardt]

removes target="_blank" from two links, tweaks the sentences' text (using the words "support for" in both), and rearranges paragraphs

[sabernhardt]

As long as the strings would change, I also would like to

1. remove "here" because the word is unnecessary and often unclear,
2. move "learn more about" before the link so the link text is shorter,
3. begin the plugin authors' sentence the same way on the Export Personal Data page as [53182] changed the sentence for the Erase Personal Data page,
4. move the privacy guide paragraph before the sentence for plugin authors, and
5. consider either adding "support for" in the link text for Export Personal Data or removing it from Erase Personal Data.

[joedolson]

I think these are all good suggestions; my preference is to go more concise, so on point #5, I think we should remove 'support for' from the Erase screen. I think it's more direct, and the audience doesn't need the extra elaboration.

[joedolson]

Remove 'support for' from erase Help text

[sabernhardt]

The first patch contained "support for" in both strings, and 60097.1.diff still has it in the export help text.

[joedolson]

In 58018:

Help/About: Accessibility: Remove target="_blank" from data eraser links.

Remove target="_blank" from two links to developer resources on adding the personal data eraser to plugins in the Help info for the privacy screens. Also rectifies differences between the export and erase screens for consistency and changes the order of paragraphs.

Props sabernhardt, joedolson.
Fixes #60097.

[joedolson]

Darn. I missed that. Having some trouble with my eyes.

[joedolson]

Follow up

[joedolson]

In 58019:

Help/About: Text consistency follow-up to [58018].

Follow up to [58018]. Remove extra 'support for' from Export help link text.

Props sabernhardt.
Fixes #60097.

[joedolson]

OK, I just realized that I committed this to the 6.5 branch by accident. I assume that I failed to switch branches after my last merge during 6.5 RC. Reopening.

[joedolson]

New patch, now that I'm actually committing to *trunk*

[joedolson]

In 58021:

Help/About: Accessibility: Remove target="_blank" from data eraser links.

Remove target="_blank" from two links to developer resources on adding the personal data eraser to plugins in the Help info for the privacy screens. Also rectifies differences between the export and erase text for consistency and changes the order of paragraphs.

Props sabernhardt, joedolson.
Fixes #60097.