Fix proposal for #1135

[fpotier]

See #1135

[fpotier]

Note that this patch requires to update the deployment's config

[nitrosx]

@fpotier would you be able to expand the functionality in the following way:

• If no configuration value is provided under the key "logo-icon", you use the assets/images/site-logo.png, otherwise you inject the value provide in configuration
• Update/Create documentation so we explain the configuration variable and value, and also we provide example on how to mount the logo image into the docker container.

Please let me know if it makes sense, or I should elaborate on it.

[fpotier]

@nitrosx Should this new configuration key logo-icon contain the absolute path of the asset or we just assume it's a file in assets/images?

Where should I write the associated documentation?

[nitrosx]

@fpotier let's assume that it leaves in assets/images.

You can find the documentation in repo https://github.com/SciCatProject/documentation.
Most likely goes under the Operator section.

[nitrosx]

@fpotier please let me know if my comment makes sense

[fpotier]

@nitrosx Yes it does, now it should work as you asked

[nitrosx]

I was thinking something as the following:

<ng-template [ngIf]="logoIcon === '' or logoIcon ==='default'" [ngIfElse="customLogo">
 <img class="logo" src="../../../asstes/images/header-logo.png" />
</ng-template>
<ng-template #customLogo>
 <img class="logo" src="../../../asstes/images/{{ logoIcon }}" />
</ng_template>