fix：Fixed link namespace published items show missing some items

[youngzil]

What's the purpose of this PR

XXXXX

Which issue(s) this PR fixes:

Fixes #5237

Brief changelog

XXXXX

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• Read the Contributing Guide before making this pull request.
• Write a pull request description that is detailed enough to understand what the pull request does, how, and why.
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• Run mvn clean test to make sure this pull request doesn't break anything.
• Update the CHANGES log.

Summary by CodeRabbit

• New Features
  • Enhanced visibility in the namespace panel by displaying old values for modified or deleted items.
  • Improved item display logic with character limits and ellipsis for better readability.
• Bug Fixes
  • Resolved an issue where some published items were missing from the namespace display.

[coderabbitai]

Walkthrough

The changes in this pull request modify the display logic for items in the namespace panel of the Apollo portal. The conditions for rendering items have been expanded to include checks for config.oldValue, allowing old values to be shown for modified or deleted items. The ng-click directive has been updated to conditionally show either the old or current value based on the item's status. Additionally, the character limit for displayed values has been set to 250 characters, with ellipses for longer texts.

Changes

File	Change Summary
apollo-portal/src/main/resources/static/views/component/namespace-panel-master-tab.html	Updated ng-if and ng-click conditions to include config.oldValue; adjusted display logic for item values.
CHANGES.md	Added entry for Apollo version 2.4.0 addressing display issues for published items.

Assessment against linked issues

Objective	Addressed	Explanation
Display modified or deleted configurations in the tab (5237)	✅
Ensure old values are shown when applicable (5237)	✅
Maintain current value display for unmodified items (5237)	✅

Possibly related PRs

• add namespaces check in synchronization configuration feature #5192: Involves modifications to ItemController and NamespaceSyncModel, which may affect item management and display logic in the namespace panel.

Poem

In the namespace where values play,
Old and new now find their way.
With a click, the past unfolds,
In 250 characters, a story told.
Hooray for changes, bright and clear,
A rabbit's cheer, let’s all draw near! 🐇✨

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[nobodyiam]

Looks great! BTW, please update the CHANGES.md.

[youngzil]

CHANGES.md

Already added CHANGES.md

[coderabbitai]

Actionable comments posted: 0

🧹 Outside diff range and nitpick comments (1)

CHANGES.md (1)

11-11: LGTM with a minor suggestion for clarity.

The changelog entry correctly addresses the issue described in the PR objectives and follows the consistent format of other entries. The link to the PR is accurate.

Consider slightly rewording the entry for improved clarity:

-* [Fix link namespace published items show missing some items](https://github.com/apolloconfig/apollo/pull/5240)
+* [Fix: Linked namespace published items now show previously missing items](https://github.com/apolloconfig/apollo/pull/5240)

This rewording maintains the essence of the fix while making it slightly more descriptive and easier to understand at a glance.

📜 Review details

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📥 Commits

Files that changed from the base of the PR and between adf9e04 and 1ae78eb.

📒 Files selected for processing (1)

• CHANGES.md (1 hunks)

[nobodyiam]

LGTM