BC-4482 - add board link element

[OliverHappe]

Short Description

Adds link element and various cq improvements regarding the board feature

Links to Ticket and related Pull-Requests

• https://ticketsystem.dbildungscloud.de/browse/BC-4482

Changes

• Adds link element
• refactors board-menu
• adds refactored board-menu to all elements and board itself
• adds @braintree/sanitize-url dependency for url sanitization

Checklist before merging

• QA: In addition to review, the code has been manually tested (if manual testing is possible)
• PO: Any deviation from requirements was agreed with Product-Owner / ticket author / support-team
• DEV: Every new component is implemented having accessibility in mind (e.g. aria-label, role property)

Notice: Please keep this Pull-Request as a Draft (or add WIP label), until it is ready to be reviewed

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

83.6% Coverage
0.0% Duplication

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