Up Next reorder delay

[bjtitus]

Android	Automattic/pocket-casts-android#4862

Fixes PCIOS-419

When we reorder episodes, a timer is started to sync after 5 seconds. However, if other episodes are being reordered while sync is occurring, the data sets can get out of sync. The fix here is to immediately cancel the timer when dragging begins.

ReorderJump.mov

To test

• Add many items to the Up Next queue
• Use Network Link Conditioner to set network profile to 3G
• Reorder episodes in the Up Next queue using drag and drop in relatively quick succession
• ✅ Verify that episode maintain ordering

Checklist

• I have considered if this change warrants user-facing release notes and have added them to CHANGELOG.md if necessary.
• I have considered adding unit tests for my changes.
• I have updated (or requested that someone edit) the spreadsheet to reflect any new or changed analytics.

[SergioEstevao]

Tested this with the conditioner and order was always kept.