feat: #336, #332 - Use darker font for subtext

Author: StubberG3

frontend/src/App.css

@@ -170,7 +170,7 @@ The heading directly under the nav bar.
 }
 
 .desc1 {
-    @apply mx-auto mt-5 text-center font-satoshi text-lg text-gray-400 sm:text-xl md:block;
+    @apply mx-auto mt-5 text-center font-satoshi text-lg text-gray-800 sm:text-xl md:block;
     font-size: 100%;
     letter-spacing: 0.03em;
 }

frontend/src/pages/Feedback/Feedback.tsx

@@ -8,7 +8,7 @@ function Feedback() {
         <div className="mt-10">
           <h2 className="px-2 text-center font-quicksand text-2xl font-medium text-gray-800 md:mt-7 md:p-0 md:px-0 md:text-5xl">Feedback</h2>
           <p className="mx-auto mt-5 mb-10
-          max-w-[100%] text-center font-satoshi text-log text-gray-400 sm:text-x; md:block">
+          max-w-[100%] text-center font-satoshi text-log text-gray-800 sm:text-x; md:block">
             Leave feedback for the Balancer Team in the form below or send us a message directly at {" "}
             <a href="mailto:[email protected]" className="underline hover:border-blue-600 hover:text-blue-600 hover:no-underline">
               [email protected]