Write more instrumented tests

[Ninjaman494]

There should be one for each activity, but at the moment we only have tests for Conjugation and ConjInfo activities

[Ninjaman494]

Tests for Display and Main Activities have been written in PR #28

[Ninjaman494]

Remaining tests

• Search Results
• Search
• Settings
• Add Favorites
• Conjugations
• Conjugation Info
• Conjugator
• Launch

[Ninjaman494]

Tests for Search Results, Settings, and Launch Activities created in #54 , also updated Conjugations tests in this PR

[Ninjaman494]

Tests for Search and Conjugator Activities in #56