test: improve test params

[JeanExtreme002]

Why is this PR necessary, what does it do?
This pull request updates the test assertions in tests/test_editor.py for the integer, float, and string search tests. The changes adjust the thresholds for what is considered a passing test, making the tests slightly stricter in terms of the number of found items, but more lenient in terms of correctness.

Test assertion threshold adjustments:

• Increased the minimum required ratio for found / test_length from 0.7 to 0.8 in the test_search_by_int, test_search_by_float, and test_search_by_string functions to make the tests stricter about finding enough items. [1] [2] [3]
• Decreased the minimum required ratio for correct / total from 0.7 to 0.5 in the same test functions, making the correctness requirement more lenient. [1] [2] [3]

Checklist (complete all items):

• Added tests as necessary.
• There is no breaking change for existing features.

References:

No references to be shared.

Notes:

No notes to be shared.