fix: preserve white spaces when parsing the default editor

[LIlGG]

What type of PR is this?

/kind bug
/area editor
/area console
/milestone 2.12.x

What this PR does / why we need it:

在默认富文本编辑器解析文本时，使其保留空白符。

see https://prosemirror.net/docs/ref/#model.ParseOptions.preserveWhitespace

How to test it?

1. 输入一串文字，在其开始、结束、内容中分别键入空白字符。
2. 保存内容
3. 刷新页面，查看空白字符是否保留。

Which issue(s) this PR fixes:

Fixes #5260

Does this PR introduce a user-facing change?

解决默认富文本编辑器内容刷新后空白字符丢失的问题

[sonarqubecloud]

Quality Gate passed

Kudos, no new issues were introduced!

0 New issues
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarCloud

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (e15923b) 57.07% compared to head (1610fa5) 57.07%.
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##               main    #5292   +/-   ##
=========================================
  Coverage     57.07%   57.07%           
  Complexity     3329     3329           
=========================================
  Files           587      587           
  Lines         18956    18956           
  Branches       1402     1402           
=========================================
  Hits          10820    10820           
  Misses         7558     7558           
  Partials        578      578           

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[ruibaby]

/lgtm

[JohnNiang]

/approve

[f2c-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: JohnNiang

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• console/OWNERS [JohnNiang]

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