fix: assistant nav style

src/renderer/src/pages/home/Assistants.tsx

@@ -136,7 +136,7 @@ const Container = styled.div`
   border-right: 0.5px solid var(--color-border);
   height: calc(100vh - var(--navbar-height));
   overflow-y: auto;
-  padding: 10px 0;
+  padding-top: 10px;
   padding-bottom: 0;
 `
 

src/renderer/src/pages/home/HomePage.tsx

@@ -124,7 +124,7 @@ const NavigtaionBack = styled.div`
   justify-content: flex-start;
   gap: 10px;
   cursor: pointer;
-  margin-left: ${isMac ? '16px' : 0};
+  margin-left: ${isMac ? '16px' : '4px'};
   -webkit-app-region: none;
   transition: all 0.2s ease-in-out;
   color: var(--color-icon);

src/renderer/src/pages/home/Topics.tsx

@@ -137,6 +137,9 @@ const Container = styled.div`
   flex: 1;
   flex-direction: column;
   overflow-y: scroll;
+  padding-top: 10px;
+  padding-bottom: 10px;
+  margin-top: -10px;
 `
 
 const TopicListItem = styled.div`