chore: move tasks to the end of UI session

Reorganized the pull request template by moving the tasks section and updating the formatting.

Signed-off-by: Guilherme Carvalho <dev.gcarvalho@gmail.com>

Author: guilhermercarvalho

.github/pull_request_template.md

@@ -73,10 +73,6 @@ Feel free to remove this section when your PR only affects the backend/API code.
 - [ ] ... <!-- Describe the tasks performed here (e.g., layout adjustment, new feature X) -->
 - [ ] Screenshots before/after (add images or links)
 
-### 🚧 Tasks
-<!-- Add here the list of tasks that is necessary to do before merge this PR. As example: update the package X, merge the PR y. If isn't necessary, fell free to remove this block -->
-- [ ] ...
-
 🏚️ Before | 🏡 After
 --- | ---
 Screenshot before | Screenshot after
@@ -89,6 +85,10 @@ Screenshot before | Screenshot after
 - [ ] Design review approved – *optional, link to feedback if available*
 - [ ] Documentation updated (if applicable) – [docs repository](https://github.com/LibreSign/documentation/)
 
+### 🚧 Tasks
+<!-- Add here the list of tasks that is necessary to do before merge this PR. As example: update the package X, merge the PR y. If isn't necessary, fell free to remove this block -->
+- [ ] ...
+
 ## ⚙️ API / Back‑end changes
 
 <!--