feat(facade): add merge facade api

[ybzky]

close #xxx

Pull Request Checklist

• Related tickets or issues have been linked in the PR description (or missing issue).
• Naming convention is followed (do please check it especially when you created new plugins, commands and resources).
• Unit tests have been added for the changes (if applicable).
• Breaking changes have been documented (or no breaking changes introduced in this PR).

[github-actions]

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[codecov]

Codecov Report

Attention: Patch coverage is 17.07317% with 34 lines in your changes missing coverage. Please review.

Project coverage is 30.09%. Comparing base (a2be933) to head (86b9bec).
Report is 33 commits behind head on dev.

Files with missing lines	Patch %	Lines
packages/facade/src/apis/sheets/f-range.ts	17.39%	19 Missing ⚠️
...c/commands/commands/add-worksheet-merge.command.ts	0.00%	13 Missing ⚠️
...ommands/commands/remove-worksheet-merge.command.ts	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##              dev    #3289      +/-   ##
==========================================
+ Coverage   29.84%   30.09%   +0.24%     
==========================================
  Files        2051     2109      +58     
  Lines      109053   109719     +666     
  Branches    23712    23852     +140     
==========================================
+ Hits        32548    33015     +467     
- Misses      76505    76704     +199     

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[hexf00]

It is recommended to implement the following API as defined below.
Facade should be easy to use and reduce the appearance of IRange

• FRange.breakApart(): FRange ref https://developers.google.com/apps-script/reference/spreadsheet/range?hl=zh-cn#breakapart
• FRange.merge(): FRange;
• FRange.mergeAcross(): FRange;
• FRange.mergeVertically(): FRange;
• FRange.isPartOfMerge(): boolean;
• FRange.getMergedRanges(): FRange;

Add an example (Office Script design) to explain why there is a merge API on Range
https://learn.microsoft.com/zh-cn/javascript/api/office-scripts/excelscript/excelscript.range?view=office-scripts#excelscript-excelscript-range-getmergedareas-member(1)

[hexf00]

LGTM