Failed to migrate to 12.0

We failed to migrate ngx-highlightjs in our project from 10.0 to 12.0 because of the multiple errors in the console. Please note, that new version added "language" property so the error may relate to this feature.

Reproduction

We couldn't reproduce this issue in StackBlitz (https://stackblitz.com/edit/ngx-highlightjs) because the changes were rebuilding too much (more than 15 mins) and probably stuck.

Expected Behavior

No issues should happen

Actual Behavior

If I use this line in the template:

<pre><code [highlight]="'int a'" language="java"></code></pre>

I see an error in the console:

Error: Unknown language: "int a"
    at Object.f [as highlight] (global:scripts.js:10:4344)
    at _HighlightJS.<anonymous> (ngx-highlightjs.mjs:185:17)
    at Generator.next (<anonymous>)

If I use this line in the template:

<pre><code [highlight]="'java'" language="java"></code></pre>

I see this error in the console:

TypeError: t2.substr is not a function
    at Object.f [as highlight] (global:scripts.js:10:4593)
    at _HighlightJS.<anonymous> (ngx-highlightjs.mjs:185:17)
    at Generator.next (<anonymous>)

Environment

Angular: 18.0.3
ngx-highlightjs: 12.0.0
Browser(s): Сhrome
Operating System (e.g. Windows, macOS, Ubuntu): Windows

MurhafSousli / ngx-highlightjs