Bug/CLARK-CLIENT-2B/fix-typeerror-empty-collections

[sentry]

This PR addresses issue CLARK-CLIENT-2B, a TypeError that occurred in the profile-learning-objects component when attempting to access collectionsReleased[0].abvName or collectionsUnreleased[0].abvName when these arrays were empty.

The root cause was the unconditional access of the first element of these arrays without prior checks for their length. This happened when a user had no released or unreleased learning objects, leading to an undefined value at index [0] and subsequently a TypeError upon property access.

Changes Made:

• src/app/cube/user-profile/components/profile-learning-objects/profile-learning-objects.component.ts: Added a length check (if (this.collectionsReleased.length > 0)) before calling this.content() with collectionsReleased[0].abvName in the ngOnChanges lifecycle hook.
• src/app/cube/user-profile/components/profile-learning-objects/profile-learning-objects.component.html: Implemented short-circuiting (collectionsReleased.length && ...) in the click handlers for the 'Released Objects' and 'Draft' tabs to ensure content() is only called with [0].abvName if the respective collection array is not empty.

Fixes CLARK-CLIENT-2B

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