docs: clean up starter flows and screenshots (#7428)

* quickstart-use-parser

* update-screenshots

* blog-writer

* document-qa

* remove-math-agent-and-redirect

* other-starter-flows

* swap-message-history-and-message-store

* link

* prerequisite-language

* Apply suggestions from code review

Co-authored-by: KimberlyFields <46325568+KimberlyFields@users.noreply.github.com>

* docs: update prerequisite phrasing for clarity

* add-running-instance-to-quickstart

* bullets

* quickstart-spacing

---------

Co-authored-by: KimberlyFields <46325568+KimberlyFields@users.noreply.github.com>

docs/docusaurus.config.js

@@ -172,8 +172,9 @@ const config = {
             ],
           },
           {
-            to: "/math-agent",
+            to: "/starter-projects-simple-agent",
             from: [
+              "/math-agent",
               "/starter-projects-math-agent",
               "/tutorials-math-agent"
             ],