fix: use proper string concatenation operator

[imnotjames]

the "unhappy path" message was split across multiple lines but used arithmetic rather than concat operations

Summary by CodeRabbit

• Refactor
  • Improved internal code consistency in synchronization status message handling.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: d56750a8-4af3-49c6-89db-63d6ccc3e52b

📥 Commits

Reviewing files that changed from the base of the PR and between ea305d1 and b4708dc.

📒 Files selected for processing (1)

• grimmory.koplugin/main.lua

📜 Recent review details

🔇 Additional comments (1)

grimmory.koplugin/main.lua (1)

413-416: LGTM!

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📝 Walkthrough

Walkthrough

The pull request updates the verbose completion toast message in grimmory.koplugin/main.lua when some sessions or books fail during sync. The string concatenation for the multi-line message template is changed from using the + operator to Lua's .. operator for consistency.

Changes

Sync Message Concatenation Update

Layer / File(s)	Summary
String concatenation operator update grimmory.koplugin/main.lua	The verbose "Completed Grimmory sync" message construction switches from + to .. operator for assembling the multi-line failure summary text.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Suggested labels

enhancement

🐰 A tiny tweak, but oh so neat!
Changing + to .. makes Lua sweet,
String concatenation's now consistent and clean,
The smoothest sync message you've ever seen! ✨

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title follows the conventional commit format with 'fix:' prefix and clearly describes the main change of fixing string concatenation.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

✨ Simplify code

• Create PR with simplified code

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