View list of Regex patterns added by user

[kunnark]

AS A Training Module User
I WANT TO see existing regex patterns via GUI
SO I WOULD have an overview of existing ones and a path to manipulate them

Acceptance Criteria

• A list of regex patterns is provided by a Ruuter endpoint GET /regex via ReSQL GET list_regex as a JSON array
• A list of regex patterns is shown via GUI
• GUI provides a button to remove any given regex pattern

[turnerrainer]

@alimuhammadahmer @kunnark

1. ACs must contain all REST endpoints used to get the result;
2. There are currently a user story with ACs and something similar to a draft user story with some bullet points - remove what's unnecessary.

[alimuhammadahmer]

List Regex Mapping Ruuter Endpoint:
GET /regex
List Regex Mapping Resql Endpoint:
POST list_regex

[kunnark]

@turnerrainer

1. AC REST endpoints added
2. Draft deleted
3. You have added and AC- Any given regex pattern can be removed by calling a specific Ruuter endpoint Deleting Regex is a separate user story here: Delete added Regex pattern from database #63, will remove this AC.