fix($plugin-pagination): get posts calculation error

[lhz960904]

Summary
This plugin enhanceAppFile calculation errors to get posts. When Max is 20 interval 10, it will slice [0, 11], [10, 21] ，but the right result should be [0, 10] [10, 20]

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• Bugfix
• Feature
• Code style update
• Refactor
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• No

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The PR fulfills these requirements:

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Other information:

[flozero]

I will have a look of this pr. Maybe is more about the end calculation @lhz960904 ?

[flozero]

@lhz960904 can you provide me a repo example please to validate a push the merge conflict resolve

[flozero]

#1345 relation with that pr too

[lhz960904]

@lhz960904 can you provide me a repo example please to validate a push the merge conflict resolve
emm, this pr happened long long ago， at that time , there is not merge conflict . so now I don't know how to resolve . sorry

[flozero]

just git pull origin master and resolve from here

[ulivz]

This pagination plugin has been deprecated and merged into blog plugin, you can move this pull request to here.