R1:6649b0cef890

Remove "Application" field from ConduitSearchEngine

Summary: Fixes T9063. Removes the "Application" field from the search because it was largely redundant with the 'Name Contains' field.

Test Plan: Went to `/conduit/query/modern/`, clicked on `Edit Query` and noted that there is no "Application" field anymore. The 'Name Contains' field still works however.

Reviewers: epriestley, #blessed_reviewers

Reviewed By: epriestley, #blessed_reviewers

Subscribers: Korvin, epriestley, yelirekim

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