refresh

[h1alexbel]

PR-Codex overview

This PR focuses on renaming the titles of four diagrams to better reflect their scenarios.

Detailed summary

• Renamed "Add Token Success Flow" diagram to "Add Token Scenario"
• Renamed "Notifications Read Flow" diagram to "Notifications Read Scenario"
• Renamed "Token Validation Process" diagram to "Scheduled Token Validation Scenario"
• Renamed "Register Chat ID Flow" diagram to "Register Chat ID Scenario"

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[zoeself]

@h1alexbel thank you for your Pull Request. I'll assign someone to review it soon.

If this PR solves a todo from the code, please don't forget to remove it.