pre-push

Changes:
- Delete old server files from project root
    - /app.ts
    - /jamiDaemon.ts
    - /routes/
    - /rollup.config.js
    - /jamiServerConfig.json
    - /*.env
- Remake tsconfig.json for client, common, and server
    - Delete root /tsconfig.json
    - Make subproject tsconfig.json files standalone
    - Improve consistency between tsconfig.json files
- Move Cypress and Sentry tests to client/
- Update README.md, Dockerfile and .dockerignore
    - Remove extra symlink
    - Remove mentions and links to old server (e.g. ports)
- Remove boilerplate project in test/, which has nothing to do with tests
- Update package.json to remove scripts for old server
- Update .gitignores to be consistent with their folder contents

GitLab: #109
Change-Id: Ie575113288c973115c3236e030b02d1a54e3510c