Partially implemented the Manage Time functionality

tests/debugTabs.test.cjs

@@ -292,6 +292,7 @@ test("full-page debug CSS defines responsive bounds and readable semantic colors
 test("scoped debug styles are packaged after the unchanged main stylesheet", () => {
   const root = path.join(__dirname, "..");
   const css = ["src/content/styles/redwood.css", "src/features/debug/styles.css", "src/features/opportunities/styles.css", "src/features/install-base/styles.css", "src/features/service-requests/styles.css", "src/features/consumption/plan-detail.css", "src/features/ratecard/styles.css", "src/features/opportunities/customer-table-search.css", "src/features/opportunities/calendar.css"]
+    .concat("src/features/manage-time/styles.css")
     .map(file => fs.readFileSync(path.join(root, file), "utf8")).join("\n");
   assert.ok(composeScript("content").includes(`const redwoodStyles = ${JSON.stringify(css)};`));
   assert.ok(!composeScript("background").includes("opportunities-extension-debug-tabs"));