Add links to spam input in abuse report form

What does this MR do and why?

• Adds an input called Link to Input to the Abuse Report form. This is for users to give examples of links where the user being reported has done something abusive
• The input field is optional, users can add multiple links, with a max of 20 links.

Screenshots or screen recordings

Screen_Recording_2023-01-02_at_6.11.27_pm

Database Migration

Output of db:migrate

main: == 20221229064959 AddLinksToSpamToAbuseReports: migrating =====================
main: -- transaction_open?()
main:    -> 0.0000s
main: -- column_exists?(:abuse_reports, :links_to_spam)
main:    -> 0.0199s
main: -- add_column(:abuse_reports, :links_to_spam, :text, {:array=>true, :null=>false, :default=>[]})
main:    -> 0.0015s
main: -- transaction_open?()
main:    -> 0.0000s
main: -- current_schema()
main:    -> 0.0003s
main: -- transaction_open?()
main:    -> 0.0000s
main: -- execute("ALTER TABLE abuse_reports\nADD CONSTRAINT abuse_reports_links_to_spam_length_check\nCHECK ( CARDINALITY(links_to_spam) <= 20 )\nNOT VALID;\n")
main:    -> 0.0008s
main: -- current_schema()
main:    -> 0.0003s
main: -- execute("SET statement_timeout TO 0")
main:    -> 0.0004s
main: -- execute("ALTER TABLE abuse_reports VALIDATE CONSTRAINT abuse_reports_links_to_spam_length_check;")
main:    -> 0.0005s
main: -- execute("RESET statement_timeout")
main:    -> 0.0005s
main: == 20221229064959 AddLinksToSpamToAbuseReports: migrated (0.0405s) ============

Output of db:rollback

main: == 20221229064959 AddLinksToSpamToAbuseReports: reverting =====================
main: -- transaction_open?()
main:    -> 0.0000s
main: -- column_exists?(:abuse_reports, :links_to_spam)
main:    -> 0.0455s
main: -- remove_column(:abuse_reports, :links_to_spam)
main:    -> 0.0011s
main: == 20221229064959 AddLinksToSpamToAbuseReports: reverted (0.0573s) ============

How to set up and validate locally

1. Log-in as any user
2. Go to another user's profile, such as http://localhost:3000/maisha
3. Click on Report abuse to administrator

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.

Resolves https://gitlab.com/gitlab-org/modelops/anti-abuse/team-tasks/-/issues/132/