Fix for scanning new books

Merge pull request #159 from shockbytes/fix-retrofit-proguard-rules

Fix Retrofit Proguard Rules

Update image picker for scoped storage support

Merge pull request #157 from shockbytes/update-image-picker-dep

Update image picker dep

Maintenance Update

Merge pull request #156 from shockbytes/prepare-4.2-release

Prepare v4.2 release

Bugfixes in backups and title sorting

Merge pull request #150 from shockbytes/v4.1.1

V4.1.1

Suggestions Improvements & Seasonal theme support

3.18.1

Fix issue with Proguard with the themes package

Remote suggestions

• Smooth loading animator when uploading local images + scale down
• Non-critical Bugfixes
• Connect to Firebase suggestions API
  • Allow books suggestions from the overflow menu
  • Load suggestions from Firebase API
  • Report books
  • Cache books locally to minimize Firebase function calls
  • Explain caching
    - [x] Let users log in from error dialog
• Allow clicks on wishlist books

Inspirations feature

Inspirations feature (wishlist + suggestions) and the bugfix for manually adding book covers.

Bring back backups

Fix implementation of backup functionality.

v3.15

Set a monthly reading goal

New book action UI + timeline improvements

#91 Small timeline improvements
#90 New book action UI