Give user a feedback if update fails

jasonlam510 / Cityu-Hall-Laundry-Status

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Give user a feedback if update fails #5

Open TrulyBright opened 5 months ago

TrulyBright commented 5 months ago

The code logs only to console if an update fails. This PR adds an HTML element that shows up on update failure and disappears (or never shows up) on success.