Implement emoji packs pagination

Closes #118 (closed)

added 3 commits

• 8d23e36a - Put managing local and remote packs on tabs
• 918bd18b - Add pagination to local emoji packs
• a6a92d34 - Use current page when fetching local emoji packs

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added 7 commits

• a98ee9f4 - Update API and actions to add files pagination
• 6a73b4f2 - Implement pagination for files in a local emoji pack
• 84c6319a - Update function that saves active tabs in state
• acf90129 - Collapse inner items when parent item was closed
• bac50fe6 - Remove sorting local emoji packs
• ab77704c - Fix displaying remote emojis
• fbcc5ee5 - Add optimistic update for managing files in pack

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added 3 commits

• dca1f2cc - Fix deleting last items on page
• 9137362d - Fix downloading remote packs
• e0f93c45 - Update Changelog

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added 6 commits

• e0f93c45...ed801c54 - 5 commits from branch develop
• 1bae1cd3 - Merge branch 'develop' into 'feature/emoji-packs-pagination'

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unmarked as a Work In Progress

mentioned in commit f1a9d172

merged