docs: Change console to shell and remove unused elements (#5960)

docs/install/binary.md

@@ -4,7 +4,7 @@ Coder publishes self-contained .zip and .tar.gz archives in [GitHub releases](ht
 
 1. Unzip the folder you just downloaded, and move the `coder` executable to a location that's on your `PATH`
 
-   ```console
+   ```shell
    # ex. macOS and Linux
    mv coder /usr/local/bin
    ```
@@ -13,7 +13,7 @@ Coder publishes self-contained .zip and .tar.gz archives in [GitHub releases](ht
 
 1. Start a Coder server
 
-   ```console
+   ```shell
    # Automatically sets up an external access URL on *.try.coder.app
    coder server