feat(home): support right alignment in homeContentComponent

[PierreBrisorgueil]

Context

home.content.component.vue currently supports only alignment: 'left' | 'center' (ternary computedAlignment === 'center' ? 'text-center' : 'text-left'). Some landing-page layouts need to right-align section title/subtitle/text — for example when the associated illustration sits on the right and the whole block should feel visually anchored to that side.

Request

Extend alignment to accept 'left' | 'center' | 'right' so downstream projects can set alignment: 'right' on a section setup.

Scope

Single component, src/modules/home/components/utils/home.content.component.vue:

• Replace the text-align ternary on <v-card-title> and <v-card-text> with a computed alignmentClass returning text-left / text-center / text-right.
• Replace the icon-row justify ternary with a computed returning justify-start / justify-center / justify-end.
• Replace the <v-card-actions> justify ternary with the same justify computed.
• Keep 'left' as the default, preserve existing behavior for existing configs.
• Add unit tests covering each of the three values.

Use case

Used from home.trawl.config.js aboutFeatures (For developers section) where the illustration is right-aligned and the text block should follow.

Out of scope

No changes to home.about.component.vue or any other consumer. This is a pure capability extension of the shared content renderer.