Issue 05-02: Check if user entered regEx really matches the whole example

[moormaster]

Website-link: https://coderdojopotsdam.github.io/regex-tutorial/en/05-02.html

Expected Behavior

Only regular expressions matching the whole numbers should be considered valid.

Actual Behavior

"[048]" is considered a valid answer to the challenge though it only matches the last digits of 20, 24, 28.

Actions to Reproduce

Enter "[048]" as user input into the challenge

Solution Description

If the reference regex starts with ^ and ends with $ the user input should also be checked against each whole example line.
See PR #121.

Languages

• English (en)
• German (de)

[moormaster]

Solved by PR #121