RFR: 8369085: RichTextArea SELECT_PARAGRAPH to include line separator

[Andy Goryachev]

RichTextArea.Tag.SELECT_PARAGRAPH or RichTextArea.selectParagraph() must include the trailing line separator (if present).

This is a behavioral change, but a simple one (an obvious bug) - maybe one reviewer is sufficient.  I don't think this needs a CSR.

-------------

Commit messages:
 - select paragraph

Changes: https://git.openjdk.org/jfx/pull/1940/files
  Webrev: https://webrevs.openjdk.org/?repo=jfx&pr=1940&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8369085
  Stats: 18 lines in 2 files changed: 17 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jfx/pull/1940.diff
  Fetch: git fetch https://git.openjdk.org/jfx.git pull/1940/head:pull/1940

PR: https://git.openjdk.org/jfx/pull/1940