[FEATURE] : Add Filter

[Ritikverma323]

Add Filter to search post by categories.

[iamanshikaa]

Please Assign it to me for hacktoberfest.

[NityaSriDeepakRaj]

can this issue be assigned to me

[Ritikverma323]

If you find this repository helpful, please consider giving it a ⭐️ — it really helps support the project.