Fix: Unable to Click on Prompt in UI when It is empty and add regression test (#4904)

📝 (sanitizedHTMLWrapper/index.tsx): Update className from "m-1" to "m-1 w-full" for better styling
✨ (generalBugs-prompt.spec.ts): Add test for user to edit an empty prompt in the application

src/frontend/src/components/common/sanitizedHTMLWrapper/index.tsx

@@ -15,7 +15,7 @@ const SanitizedHTMLWrapper = forwardRef<
       dangerouslySetInnerHTML={{ __html: sanitizedHTML }}
       suppressContentEditableWarning={suppressWarning}
       {...props}
-      className="m-1"
+      className="m-1 w-full"
     />
   );
 });

src/frontend/tests/core/regression/generalBugs-prompt.spec.ts

@@ -0,0 +1,105 @@
+import { expect, test } from "@playwright/test";
+import * as dotenv from "dotenv";
+import path from "path";
+
+test(
+  "user must be able to edit an empty prompt",
+  { tag: ["@release", "@starter-project"] },
+  async ({ page }) => {
+    test.skip(
+      !process?.env?.OPENAI_API_KEY,
+      "OPENAI_API_KEY required to run this test",
+    );
+
+    if (!process.env.CI) {
+      dotenv.config({ path: path.resolve(__dirname, "../../.env") });
+    }
+
+    await page.goto("/");
+    await page.waitForSelector('[data-testid="mainpage_title"]', {
+      timeout: 30000,
+    });
+
+    await page.waitForSelector('[id="new-project-btn"]', {
+      timeout: 30000,
+    });
+
+    let modalCount = 0;
+    try {
+      const modalTitleElement = await page?.getByTestId("modal-title");
+      if (modalTitleElement) {
+        modalCount = await modalTitleElement.count();
+      }
+    } catch (error) {
+      modalCount = 0;
+    }
+
+    while (modalCount === 0) {
+      await page.getByText("New Flow", { exact: true }).click();
+      await page.waitForSelector('[data-testid="modal-title"]', {
+        timeout: 3000,
+      });
+      modalCount = await page.getByTestId("modal-title")?.count();
+    }
+
+    await page.getByTestId("side_nav_options_all-templates").click();
+    await page.getByRole("heading", { name: "Basic Prompting" }).click();
+
+    await page.waitForSelector('[data-testid="fit_view"]', {
+      timeout: 100000,
+    });
+
+    await page.getByTestId("fit_view").click();
+
+    let outdatedComponents = await page
+      .getByTestId("icon-AlertTriangle")
+      .count();
+
+    while (outdatedComponents > 0) {
+      await page.getByTestId("icon-AlertTriangle").first().click();
+      outdatedComponents = await page.getByTestId("icon-AlertTriangle").count();
+    }
+
+    await page.getByTestId("promptarea_prompt_template").click();
+
+    await page.keyboard.press(`ControlOrMeta+a`);
+    await page.keyboard.press("Backspace");
+
+    await page.getByText("Edit Prompt", { exact: true }).click();
+
+    await page.getByTestId("edit-prompt-sanitized").click();
+
+    await page
+      .getByTestId("modal-promptarea_prompt_template")
+      .fill("THIS IS A TEST");
+
+    await page.getByText("Edit Prompt", { exact: true }).click();
+
+    let promptSanitizedText = await page
+      .getByTestId("edit-prompt-sanitized")
+      .textContent();
+
+    expect(promptSanitizedText).toBe("THIS IS A TEST");
+
+    await page.getByTestId("edit-prompt-sanitized").click();
+
+    await page.keyboard.press(`ControlOrMeta+a`);
+    await page.keyboard.press("Backspace");
+
+    await page.getByText("Edit Prompt", { exact: true }).click();
+
+    await page.getByTestId("edit-prompt-sanitized").click();
+
+    await page
+      .getByTestId("modal-promptarea_prompt_template")
+      .fill("THIS IS A TEST 2");
+
+    await page.getByText("Edit Prompt", { exact: true }).click();
+
+    promptSanitizedText = await page
+      .getByTestId("edit-prompt-sanitized")
+      .textContent();
+
+    expect(promptSanitizedText).toBe("THIS IS A TEST 2");
+  },
+);