chore(docs): changed brand button text color for better contrast (#128)

Author: GabsEdits

docs/.vitepress/theme/style.css

@@ -76,13 +76,13 @@
 
 :root {
   --vp-button-brand-border: transparent;
-  --vp-button-brand-text: var(--vp-c-white);
+  --vp-button-brand-text: var(--vp-c-black);
   --vp-button-brand-bg: var(--vp-c-brand-3);
   --vp-button-brand-hover-border: transparent;
-  --vp-button-brand-hover-text: var(--vp-c-white);
+  --vp-button-brand-hover-text: var(--vp-c-black);
   --vp-button-brand-hover-bg: var(--vp-c-brand-2);
   --vp-button-brand-active-border: transparent;
-  --vp-button-brand-active-text: var(--vp-c-white);
+  --vp-button-brand-active-text: var(--vp-c-black);
   --vp-button-brand-active-bg: var(--vp-c-brand-1);
 }