Update textarea components to use a 4px border radius

Author: robertpiosik

packages/ui/src/components/editor/modals/CommitMessageModal/CommitMessageModal.module.scss

@@ -10,7 +10,7 @@
   background-color: var(--vscode-input-background);
   color: var(--vscode-input-foreground);
   border: 1px solid var(--vscode-input-border);
-  border-radius: var(--border-radius-2px);
+  border-radius: var(--border-radius-4px);
   padding: var(--padding-5px) var(--padding-6px);
   resize: none;
   font-family: var(--vscode-font-family);

packages/ui/src/components/editor/settings/Textarea/Textarea.module.scss

@@ -3,7 +3,7 @@
   background-color: var(--vscode-input-background);
   color: var(--vscode-input-foreground);
   border: 1px solid var(--vscode-input-border);
-  border-radius: var(--border-radius-2px);
+  border-radius: var(--border-radius-4px);
   padding: var(--padding-5px) var(--padding-7px);
   resize: none;
   font-family: inherit;