Currently translated at 86.0% (302 of 351 strings)

Update from Weblate.

Currently translated at 91.0% (324 of 356 strings)

Currently translated at 24.1% (86 of 356 strings)

Currently translated at 67.9% (242 of 356 strings)

Currently translated at 97.4% (347 of 356 strings)

Currently translated at 53.6% (191 of 356 strings)

Currently translated at 99.7% (355 of 356 strings)

- When we change account or community, we cancel all related tasks
- We defined some tasks as being able to run only once
- When a task is started a second time and the firt one is not finished,
the second one is canceled

- New txhistory uses db indexation of ucoin nodes which is buggy atm
- Implemented the old txhistory algorithm to fix this problem temporarily

Replaced every bma_access.get with future_request
All network requests are now done in coroutines except simple_requests

- Added tests for core classes
- Moved gui tests to tests.gui package
- Added test for txhistory parsing