fix(issues): Fix typo and improve sidebar ordering (#14355)

This ordering update ensures that breadcrumbs are always listed after
issue detectors.

Used the following to get a rough understanding of ordering:
```
$ ag sidebar_order docs/product/issues/issue-details | sort -t: -k4 -n
```

Author: mrduncan

docs/product/issues/issue-details/breadcrumbs/index.mdx

@@ -1,7 +1,7 @@
 ---
 title: Using Breadcrumbs
 description: "Learn about using breadcrumbs on the Issue Details page to help debug faster."
-sidebar_order: 40
+sidebar_order: 60
 ---
 
 Sentry uses _breadcrumbs_ to create a trail of events that happened prior to an issue. These events are very similar to traditional logs, but can record more rich structured data.

docs/product/issues/issue-details/query-injection-issues/index.mdx

@@ -33,6 +33,6 @@ Some ORMs or query‑builder libraries assemble SQL strings internally before pa
 
 ## Remediation
 
-- Use **parameterised queries / prepared statements** instead of string concatenation.
-- **Validate and sanitise** all external input.
+- Use **parameterized queries / prepared statements** instead of string concatenation.
+- **Validate and sanitize** all external input.
 - Avoid **raw queries** when safe ORM APIs are available.