[feature] Pictique code cleanup

[JulienAuvo]

Description

File: platforms/pictique/src/routes/(protected)/+layout.svelte

• [Line 40–58]
  Replace the if...else block with a lookup table for cleaner logic.

• [Line 97]
  Extract conditional logic into the <script> block for clarity.

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File: platforms/pictique/src/routes/(protected)/messages/[id]/+page.svelte

• [Line 11]
  Replace any with a proper type (use unknown or a specific interface/type).

• [Line 36–47]
  Use arrow functions instead of traditional function declarations.

• [Line 42]
  Remove unnecessary console.log().

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File: platforms/pictique/src/routes/(protected)/profile/+page.svelte

• Add a redirect if the page content is empty or unused.

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File: platforms/pictique/src/routes/(protected)/home/+page.svelte

• [Line 148–160]
  Simplify prop passing: use comment={comment} and move all comment-specific logic into the Comment component.

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General Notes

• Search for any and replace with more appropriate types (e.g., unknown, or detailed interfaces).

• Remove console.log() statements unless used for error handling.

• Replace all occurrences of w/h-[100vh] with w/h-screen and w/h-[100%] with w/h-full.

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