- walk child of [cm-text] if [cm-text] is empty in order to find line breaks
- treat br/li/table as blocks
- always addText from on textNode not node.textContent

FIxes #5380

Closes #5376

Issue #5370

By adding classes that clearly define when a hint is a table or a keyword, it gives developers easy control if they wish to style hints differently. For example, you may wish to style table hints in a different colour to keywords (to make them easier to distinguish).

sentence. Also added unit tests for the new movement operators.

Closes #5359

Issue #5338

Issue #5356

Issue #5179

Keypress should not happen during composing (as spec) but it does on Windows for Korean IMEs

So that they don't consume commas.

Closes #5343

Closes #5333

Closes #5332

Closes #5325

Closes #5320

The merge view will incorrectly show a "Revert chunk" arrow when
the text on both sides of the view are the empty string.

The getChunks() helper is not prepared to deal with an empty diff
array.

The getDiff() helper returns an empty diff array when both strings
to compare are empty, as the only diff item returned by
diff_match_patch, `[0, ""]`, is removed as a result of the diff
entry containing an empty string.

The chosen (trivial) fix is to simply check for the empty diff
array case at the top of getChunks().

Issue #5312

The hint logic of the `fromList` command did not respect the cursor position inside the token.
Now it will list all matching completions for the substring up to the cursor, instead of only the ones matching the complete token. The behavior is now the same as for the regular autocompletion.

Closes #5290