feat: Add capability of remembering last entered project
refactor: Change the way the app remembers last project
refactor: Hide latest project selection to initialization

Simplify test for the latest project selection.
refactor: Change semantic of the latest project feature
style: Fix typo in entries_spec.rb
refactor: Change the way of the EntryForm initialization

Delete "let" block from the entries_spec.rb
Merge pull request #9 from eballance/project_remembering

feat: Add capability of remembering last entered project