chore: remove references to StackOverflow

Author: triceo

.github/ISSUE_TEMPLATE/config.yml

@@ -1,8 +1,5 @@
 blank_issues_enabled: true
 contact_links:
-  - name: Question
-    url: https://stackoverflow.com/questions/ask?tags=timefold
-    about: Ask a question about how to use Timefold Solver.
-  - name: Discussions
+  - name: Questions and ideas
     url: https://github.com/TimefoldAI/timefold-solver/discussions/new?category=general
     about: Open Community discussions related to Timefold Solver.

README.adoc

@@ -8,10 +8,7 @@ image::docs/src/modules/ROOT/images/shared/timefold-logo.png[link="https://timef
 _Planning optimization made easy._ +
 https://timefold.ai[timefold.ai]
 
-image:https://img.shields.io/badge/stackoverflow-ask_question-orange.svg?logo=stackoverflow&style=for-the-badge["Stackoverflow", link="https://stackoverflow.com/questions/tagged/timefold"]
 image:https://img.shields.io/github/discussions/TimefoldAI/timefold-solver?style=for-the-badge&logo=github["GitHub Discussions", link="https://github.com/TimefoldAI/timefold-solver/discussions"]
-
-
 image:https://img.shields.io/github/commit-activity/m/TimefoldAI/timefold-solver?label=commits&style=for-the-badge["Commit Activity", link="https://github.com/TimefoldAI/timefold-solver/pulse"]
 image:https://img.shields.io/github/issues/TimefoldAI/timefold-solver?style=for-the-badge&logo=github["GitHub Issues", link="https://github.com/TimefoldAI/timefold-solver/issues"]
 

python/README.md

@@ -3,9 +3,7 @@
 _Planning optimization made easy._  
 [timefold.ai](https://timefold.ai)
 
-[![Stackoverflow](https://img.shields.io/badge/stackoverflow-ask_question-orange.svg?logo=stackoverflow&style=for-the-badge)](https://stackoverflow.com/questions/tagged/timefold) 
 [![GitHub Discussions](https://img.shields.io/github/discussions/TimefoldAI/timefold-solver?style=for-the-badge&logo=github)](https://github.com/TimefoldAI/timefold-solver/discussions)
-
 [![PyPI](https://img.shields.io/pypi/v/timefold?style=for-the-badge& "PyPI")](https://pypi.org/project/timefold/) 
 [![Python support](https://img.shields.io/badge/Python-3.10+-brightgreen.svg?style=for-the-badge)](https://www.python.org/downloads)
 [![License](https://img.shields.io/github/license/TimefoldAI/timefold-solver?style=for-the-badge&logo=apache)](https://www.apache.org/licenses/LICENSE-2.0)