Checksum safeAddress of collectibles fetching and propagate type

[iamacook]

Summary

In order to maintain a strict type and checksummed address throughout the project, we should validate the incoming addresses. In newer controllers, we started doing this by adding an AddressSchema to address. This begins adding it to "existing" controllers.

This checksums the incoming safeAddress of BalancesController['getCollectibles'] and propagates the stricter (0x${string}) type throughout the project accordingly

Changes

• Add validation pipe checksum to incoming safeAddress of BalancesController['getCollectibles']
• Update safeAddress argument of BalancesService['getCollectibles | clearCollectibles']
• Update safeAddress argument type of IBalancesRepository['getCollectibles | clearCollectibles'] and all implementor
• Update safeAddress argument type of IBalancesApi['getCollectibles'] and all implementors (Safe/Zerion)
• Update safeAddress type of Safe/Zerion balance cache
• Update types/tests accordingly