[v1.3.0] Add multi language selection using rofi

What's Changed

• Create CODE_OF_CONDUCT.md by @moheladwy in #15
• Create dependabot.yml by @moheladwy in #16
• Update dependabot.yml by @moheladwy in #17
• Add interactive language selection and command-line options for OCR4Linux by @moheladwy in #19

Full Changelog: v1.2.0...v1.3.0