Delete old server and improve project configuration

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
diff --git a/Jenkinsfile b/Jenkinsfile
index e717de3..4da56c1 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -60,7 +60,7 @@
                 }
             }
         }
-        stage('Lint & Test') {
+        stage('Lint & test') {
             steps {
                 script {
                     docker.build("jami-web:${env.BUILD_ID}", "--target test .")