style(index.css): remove unused text-color class and update components-disclosure-title class to use text-primary class for consistent styling

style(DisclosureComponent): update Icon class to use text-primary class for consistent styling
style(FlowPage): remove logspace-icon-text class and update the structure of the icon and text elements for better alignment and spacing

src/frontend/src/index.css

@@ -230,11 +230,8 @@ The cursor: default; property value restores the browser's default cursor style
   .components-disclosure-arrangement {
     @apply -mt-px flex w-full select-none items-center justify-between border-y border-y-input bg-muted px-3 py-2
   }
-  .text-color {
-    @apply text-primary
-  }
   .components-disclosure-title {
-    @apply flex items-center text-sm text-color
+    @apply flex items-center text-sm text-primary
   }
   .components-disclosure-div {
     @apply flex gap-2
@@ -250,10 +247,6 @@ The cursor: default; property value restores the browser's default cursor style
     @apply hover:h-12
   }
   
-  .logspace-icon-text {
-    @apply mt-1
-  }
-
   .flex-max-width {
     @apply flex w-full
   }

src/frontend/src/pages/FlowPage/components/DisclosureComponent/index.tsx

@@ -14,7 +14,7 @@ export default function DisclosureComponent({
           <div>
             <Disclosure.Button className="components-disclosure-arrangement">
               <div className="flex gap-4">
-                <Icon strokeWidth={1.5} size={22} className="text-color" />
+                <Icon strokeWidth={1.5} size={22} className="text-primary" />
                 <span className="components-disclosure-title">
                   {title}
                 </span>

src/frontend/src/pages/FlowPage/index.tsx

@@ -31,7 +31,7 @@ export default function FlowPage() {
         href="https://logspace.ai/"
         className="logspace-page-icon"
       >
-        {version && <div className="logspace-icon-text">⛓️ LangFlow v{version}</div>}
+        {version && <div className="mt-1">⛓️ LangFlow v{version}</div>}
         <div className={version ? "mt-2" : "mt-1"}>Created by Logspace</div>
       </a>
     </div>