Added vehicle search function + paginated vehicles page BOD-116

hasura/migrations/1594680139254_run_sql_migration/down.yaml

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+[]

hasura/migrations/1594680139254_run_sql_migration/up.yaml

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+- args:
+    cascade: true
+    read_only: false
+    sql: |-
+      CREATE INDEX idx_vehicles_vin ON vehicles USING GIN (v_vin gin_trgm_ops);
+       CREATE INDEX idx_vehicles_plateno ON vehicles USING GIN (plate_no gin_trgm_ops);
+  type: run_sql