[BUG] Alice didn't use database and store all data in RAM

[EArminjon]

Describe the bug
All requests are put in RAM instead of local database which increase and retain high memory usage for ever.
I've some download task (huge json) and that stuck my app at 500mo or more in memory usage. Sometimes that lead to crash or freeze.

To Reproduce
Steps to reproduce the behavior:

1. Do heavy json api call
2. Open devtools and check memory usage

Expected behavior
Alice should load in ram only relevant data. Else, all should be put in a local database (you can avoid sql i think)

Screenshots
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Flutter doctor
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Alice version

• Version: 0.3.3

Smartphone (please complete the following information):

• Device: Pixel 7 emulator
• OS: Android 14 API 34

Additional context
Add any other context about the problem here.