Double space is removed on paste

[Kashkovsky]

The second space is removed when the text containing double spaces is pasted into the editor. 
While it is generally agreed that only one space after a period or punctuation mark is correct, some people may still prefer the double-space format.

Steps for Reproduction

1. Visit quilljs playground
2. Paste the following text into the editor:

The first sentence.  The second one.

Expected behavior:
The text is pasted as is (containing 2 spaces after the first period).
Actual behavior:
The second space is removed:

The first sentence. The second one.

Here is the place where the space is removed:

quill/packages/quill/src/modules/clipboard.ts

Line 647 in 6590aa4

text = text.replace(/\s\s+/g, replacer.bind(replacer, true)); // collapse whitespace

Platforms:

Any platform

Version:

2.0.0

[shareefalis]

Since it is a module, you can probably extend it to support your need and import that module to your quill instance via quill.register function