make all scalar view types Copy

[connortsui20]

Summary

Closes: #4844

API Changes

Adds Copy impl for all scalar view types.

Testing

N/A

[codspeed-hq]

Merging this PR will degrade performance by 24.04%

⚠️ Different runtime environments detected

Some benchmarks with significant performance changes were compared across different runtime environments,
which may affect the accuracy of the results.

Open the report in CodSpeed to investigate

❌ 7 regressed benchmarks
✅ 1156 untouched benchmarks

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

	Mode	Benchmark	BASE	HEAD	Efficiency
❌	Simulation	new_bp_prim_test_between[i32, 32768]	140.3 µs	169.3 µs	-17.14%
❌	Simulation	new_alp_prim_test_between[f64, 32768]	191.4 µs	235.3 µs	-18.65%
❌	Simulation	old_bp_prim_test_between[i64, 16384]	172 µs	203.5 µs	-15.45%
❌	Simulation	old_alp_prim_test_between[f64, 16384]	189.5 µs	213.1 µs	-11.08%
❌	Simulation	old_bp_prim_test_between[i32, 32768]	203.2 µs	233.5 µs	-12.96%
❌	Simulation	new_alp_prim_test_between[f32, 32768]	139 µs	183.1 µs	-24.04%
❌	Simulation	new_alp_prim_test_between[f64, 16384]	125.6 µs	147.6 µs	-14.86%

---

_{Comparing ct/scalar-views-copy (a66cb93) with develop (e75c62c)}