Add new fields jobs form (HNEE-612)

[toniwv]

NOTE: this PR must be reviewed along with Gitlab MR git.fgtclb.com/hnee/typo3-v11/-/merge_requests/460

• [TASK] Add 2 properties to Job model along with getter and setter functions: alumniRecommend and internationalsWelcome
• [TASK] Add language entries and fields (alumni_recommend, internationals_welcome) to backend regardings 2 new properties in Job model
• [TASK] Add 2 properties to Job model along with getter and setter functions: requiredDegree and contractualRelationship
• [TASK] Add language entries and fields (required_degree, contractual_relationship) to backend regardings 2 new properties in Job model

Test on HNEE Stage -> Page 529, 530, 531

1. Page 530: Backend -> Edit Jobs record -> check new fields in Jobs record

• Before:

• After:

2. Page 531: Frontend -> check new fields in New Job Form

• Before:

• After:

3. Page 529: Frontend -> check new fields in Jobs list

• Before:

• After: