chore: fix additional storybook flakes (#17450)

Fix new storybook flakes catch by
https://www.chromatic.com/test?appId=624de63c6aacee003aa84340&id=680107825818a9747e57236c

site/src/pages/OrganizationSettingsPage/CustomRolesPage/PermissionPillsList.stories.tsx

@@ -13,6 +13,11 @@ const meta: Meta<typeof PermissionPillsList> = {
 			</div>
 		),
 	],
+	parameters: {
+		chromatic: {
+			diffThreshold: 0.5,
+		},
+	},
 };
 
 export default meta;

site/src/pages/TerminalPage/TerminalPage.stories.tsx

@@ -91,7 +91,7 @@ const meta = {
 			},
 		],
 		chromatic: {
-			diffThreshold: 0.3,
+			diffThreshold: 0.5,
 		},
 	},
 	decorators: [

site/src/pages/WorkspacePage/WorkspaceTopbar.stories.tsx

@@ -38,6 +38,9 @@ const meta: Meta<typeof WorkspaceTopbar> = {
 	parameters: {
 		layout: "fullscreen",
 		features: ["advanced_template_scheduling"],
+		chromatic: {
+			diffThreshold: 0.3,
+		},
 	},
 };