0.2.15

ref: add validation for duplicate collection @tapframe
Fix mobile home catalog cache invalidation @tapframe
feat: add dominant colour bg @tapframe
fix: stabilize dominant colour metadata background @tapframe
spanish translation reinforced and updated @IberianSoldierPC
Update strings.xml @Pupon11
i18n(fr): backfill missing translations + extract residual hardcoded strings @foXaCe
fix: reconcile watched series outside details screen @tapframe
fix: stabilize home startup and watched badges @tapframe
Refresh series watched poster badges @tapframe
Use snapshot sync on mobile startup @tapframe