docs: dont rely on code blocks to change language in code_selector

cmd/ftl-gen-lsp/main.go

@@ -181,14 +181,6 @@ func stripNonGoDocs(content string) string {
 			continue
 		}
 
-		// Similar, look at the code block
-		if strings.HasPrefix(line, "```") {
-			newLang := strings.TrimPrefix(line, "```")
-			if newLang != "" {
-				currentLang = newLang
-			}
-		}
-
 		// If we're in a Go block or unspecified, collect the line.
 		if currentLang == "go" || currentLang == "" {
 			collected = append(collected, line)

docs/content/docs/reference/start.md

@@ -19,10 +19,14 @@ top = false
 
 Some aspects of FTL rely on a runtime which must be imported with:
 
+<!-- go -->
+
 ```go
 import "github.com/TBD54566975/ftl/go-runtime/ftl"
 ```
 
+<!-- kotlin -->
+
 ```kotlin
 // Declare a verb you want to use:
 import xyz.block.ftl.Verb

docs/content/docs/reference/verbs.md

@@ -20,19 +20,11 @@ top = false
 <!-- go -->
 To declare a Verb, write a normal Go function with the following signature, annotated with the Go [comment directive](https://tip.golang.org/doc/comment#syntax) `//ftl:verb`:
 
-<!-- kotlin -->
-To declare a Verb, write a normal Kotlin function with the following signature, annotated with the Kotlin [annotation](https://kotlinlang.org/docs/annotations.html) `@Verb`:
-
 ```go
 //ftl:verb
 func F(context.Context, In) (Out, error) { }
 ```
 
-```kotlin
-@Verb
-fun F(Context, In): Out { }
-```
-
 eg.
 
 ```go
@@ -46,6 +38,16 @@ func Echo(ctx context.Context, in EchoRequest) (EchoResponse, error) {
 }
 ```
 
+<!-- kotlin -->
+To declare a Verb, write a normal Kotlin function with the following signature, annotated with the Kotlin [annotation](https://kotlinlang.org/docs/annotations.html) `@Verb`:
+
+```kotlin
+@Verb
+fun F(Context, In): Out { }
+```
+
+eg.
+
 ```kotlin
 data class EchoRequest
 data class EchoResponse
@@ -56,10 +58,10 @@ fun echo(ctx: Context, request: EchoRequest): EchoResponse {
 }
 ```
 
-By default verbs are only [visible](../visibility) to other verbs in the same module.
-
 {% end %}
 
+By default verbs are only [visible](../visibility) to other verbs in the same module.
+
 ## Calling Verbs
 
 {% code_selector() %}

docs/static/js/code-selector.js

@@ -23,12 +23,6 @@ function injectTabs(codeSelector) {
         currentLang = lang;
         toAdd = { lang, element };
       }
-    } else if (element.tagName === "PRE") {
-      // pre with data-lang attribute
-      const lang = element.getAttribute("data-lang");
-      // code blocks reset the currentLang.
-      currentLang = null;
-      toAdd = { lang, element };
     } else if (currentLang) {
       // if we are in a currentLang, then add the element to it.
       toAdd = { lang: currentLang, element };