chore: refactor LightPush send

[danisharora099]

ref #1469 (comment)

[github-actions]

size-limit report 📦

Path	Size	Loading time (3g)	Running time (snapdragon)	Total time
Waku core	30.75 KB (0%)	616 ms (0%)	1.8 s (-10.85% 🔽)	2.4 s
Waku Simple Light Node	312.2 KB (+0.03% 🔺)	6.3 s (+0.03% 🔺)	6.5 s (-6.58% 🔽)	12.7 s
ECIES encryption	28.68 KB (0%)	574 ms (0%)	2.1 s (-32.61% 🔽)	2.7 s
Symmetric encryption	28.69 KB (0%)	574 ms (0%)	2.2 s (+17.62% 🔺)	2.8 s
DNS discovery	116.43 KB (0%)	2.4 s (0%)	3.7 s (+0.92% 🔺)	6.1 s
Privacy preserving protocols	123.18 KB (0%)	2.5 s (0%)	5 s (+27.83% 🔺)	7.5 s
Light protocols	30.53 KB (+0.18% 🔺)	611 ms (+0.18% 🔺)	2.7 s (+118.66% 🔺)	3.3 s
History retrieval protocols	29.69 KB (0%)	594 ms (0%)	2.2 s (-2.62% 🔽)	2.8 s
Deterministic Message Hashing	5.78 KB (0%)	116 ms (0%)	657 ms (-15.12% 🔽)	773 ms