fix(ui): polish form input

resources/css/common.css

@@ -303,7 +303,7 @@ blockquote {
   font-size: 1rem;
 }
 
-input {
+input[type=text], input[type=password] {
   color: var(--ls-primary-text-color);
   background: transparent;
 }

src/main/frontend/components/command_palette.css

@@ -48,6 +48,11 @@
 
     .cp__palette-input {
       color: var(--ls-secondary-text-color);
+      border: none;
+
+      &:focus {
+        box-shadow: none;
+      }
     }
 
     .search-result {