[@angular-eslint/template/i18n] Request: Only check for string or unknown typed attributes

[Samuel-Therrien-Beslogic]

Description and reproduction of the issue

{
  "rules": {
    "@angular-eslint/template/i18n": "error"
  }
}

<my-component cardType="info"></my-component>

Where cardType is

type CardTypes = 'default' | 'error' | 'warning' | 'info'

The rule could leverage typescript to only check for attributes of type string, any, unknown or any union containing those. Literal string unions should be omitted.
This would allow for many less false-positives with default configurations.

Versions

package	version
@angular-eslint/eslint-plugin-template	15.2.1
@angular-eslint/template-parser	15.2.1
@typescript-eslint/parser	5.62.0
ESLint	8.52.0
node	18.14.0

     _                      _                 ____ _     ___
    / \   _ __   __ _ _   _| | __ _ _ __     / ___| |   |_ _|
   / △ \ | '_ \ / _` | | | | |/ _` | '__|   | |   | |    | |
  / ___ \| | | | (_| | |_| | | (_| | |      | |___| |___ | |
 /_/   \_\_| |_|\__, |\__,_|_|\__,_|_|       \____|_____|___|
                |___/


Angular CLI: 16.1.8
Node: 18.14.0
Package Manager: npm 9.4.2
OS: win32 x64

Angular: 16.1.9
... common, compiler-cli, core, forms, language-service
... platform-browser, platform-browser-dynamic, router

Package                         Version
---------------------------------------------------------
@angular-devkit/architect       0.1601.8
@angular-devkit/build-angular   16.1.8
@angular-devkit/core            16.2.8
@angular-devkit/schematics      16.2.8
@angular/cdk                    16.1.8
@angular/cli                    16.1.8
@angular/material               16.1.8
@schematics/angular             16.2.8
ng-packagr                      16.1.0
rxjs                            7.8.1
typescript                      4.9.5

• I have tried restarting my IDE and the issue persists.
• I have updated to the latest supported version of the packages and checked my ng version output per the instructions given here.

[json-derulo]

I don't really understand what you are asking for. Do you want a new rule, and if yes, what problem should it solve? Or do you want the existing @angular-eslint/template/i18n rule to be adjusted, like the title suggests?

[Samuel-Therrien-Beslogic]

I don't really understand what you are asking for. Do you want a new rule, and if yes, what problem should it solve? Or do you want the existing @angular-eslint/template/i18n rule to be adjusted, like the title suggests?

I forgot to substitute <rule> when I originally opened the issue. I'm asking for an adjustment of the existing rule to reduce false-positives by inferring that literal string typed inputs don't need to be translated.