docs: do not use code blocks for configuration titles (#493)

website/content/docs/configuration/controller.mdx

@@ -1,7 +1,7 @@
 ---
 layout: docs
 page_title: Controller - Configuration
-sidebar_title: <code>controller</code>
+sidebar_title: controller
 description: |-
   The controller stanza configures controller-specifc parameters.
 ---

website/content/docs/configuration/kms/aead.mdx

@@ -1,7 +1,7 @@
 ---
 layout: docs
 page_title: KMS AEAD - Configuration
-sidebar_title: <code>KMS AEAD</code>
+sidebar_title: KMS AEAD
 description: |-
   The KMS AEAD configures KMS-specifc parameters.
 ---

website/content/docs/configuration/kms/index.mdx

@@ -1,7 +1,7 @@
 ---
 layout: docs
 page_title: KMS - Configuration
-sidebar_title: <code>kms</code>
+sidebar_title: KMS
 description: |-
   The KMS stanza configures KMS-specifc parameters.
 ---

website/content/docs/configuration/listener/index.mdx

@@ -1,7 +1,7 @@
 ---
 layout: docs
 page_title: Listeners - Configuration
-sidebar_title: <code>listener</code>
+sidebar_title: listener
 description: |-
   The listener stanza configures the addresses and ports on which Boundary will
   respond to requests.

website/content/docs/configuration/telemetry.mdx

@@ -1,7 +1,7 @@
 ---
 layout: docs
 page_title: Telemetry - Configuration
-sidebar_title: <code>telemetry</code>
+sidebar_title: telemetry
 description: |-
   The telemetry stanza specifies various configurations for Boundary to publish
   metrics to upstream systems.

website/content/docs/configuration/worker.mdx

@@ -1,7 +1,7 @@
 ---
 layout: docs
 page_title: Worker - Configuration
-sidebar_title: <code>worker</code>
+sidebar_title: worker
 description: |-
   The worker stanza configures worker-specifc parameters.
 ---