[Bug]: Classes of AdoptMe Btn are Not changing in dark/light mode

**Issue**
Within the "Meet Pets" section, transitioning to light mode results in insufficient visibility for the "Adopt Me" button.

**Steps for Reproduction**
Enable light mode.
Access the 'Meet Pets' section.
Notice the problem.

**Desired Outcome**
The "Adopt Me" button text should be in black color to guarantee appropriate visibility in light mode.

**Screenshot/Video-**

https://github.com/akshitagupta15june/PetMe/assets/140608790/d7250e45-908e-4972-b87b-de4ead7dc6cf