added project start and end date (#1303)

* added sortable js library
* activity in invoice is optional
* added javascript widget for paginated boxes
* fix activity dropdown for globals only
* added timesheet service to reduce code duplication
* use repository to query for teams in dropdowns
* added project validator
* validate project start and end against timesheet
* include begin and end in dynamic form requests for projects
* added timezone and language option to import flag, improve timesheet import speed
* deactivate cross-timezone filter
* add virtual fields to field order list
* composer update
* added param to ignore dates
* position loader icon fixed - fixes #1330
* permission problem when creating a new project - fixes #1340
* remove dev dependencies webserver and thanks bundle
* stop information leak (begin and end date) in duration mode - fixes #1307
* unify timesheet edit dialog for user and admins
* fix security issue, own rates exposed to unauthorized users in multi-update dialog

public/build/entrypoints.json

@@ -5,10 +5,10 @@
         "build/runtime.6ca1eea5.js",
         "build/0.1a6ffb43.js",
         "build/1.16767f92.js",
-        "build/app.23b99cbb.js"
+        "build/app.055e71d1.js"
       ],
       "css": [
-        "build/app.ce77694e.css"
+        "build/app.483d7949.css"
       ]
     },
     "chart": {
@@ -35,8 +35,8 @@
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     "build/0.1a6ffb43.js": "sha384-vuVCyLVj2b4h3jpKl+JSANRCacmXeLk+ihK5T5NZBO7+SJ5Y+o6d4qju116hTPSD",
     "build/1.16767f92.js": "sha384-JPoKdrVtBemSiVBoAnmSxLML7xXM9zYeuwOPYQv/kLzt/P4cmLY5r9gH8oaGRPFG",
-    "build/app.23b99cbb.js": "sha384-OcCvUr52EqOwqv3QvQVwP6y4AOv3JRpxwp629Df5QnPAkZqHzX5NwbaZJQZ0Xzfl",
-    "build/app.ce77694e.css": "sha384-xUdH11jkeXQ1YfJ66YW+tlcQt23/PKuPZmMi4XJuVuMLdonUk0qKAJ0HJrRL5hvf",
+    "build/app.055e71d1.js": "sha384-NGXBt+8vQ5h4orQ5B82W9GoeVpu4bNmiJI7k/goKm1ogp2JGvo0tyadJdoOf3Dt+",
+    "build/app.483d7949.css": "sha384-u8/TZyq87MTQTKScxUGmbJcWEBhsoXAlsUTB8XSgKvuufZ5bODWYm1o1E1DRosJu",
     "build/2.dad56560.js": "sha384-oKsefSmRq0GL+Qa6f6jExXvFay3cM6YZFHQRKoAHi2p54UOCtjJfjF2eAB1qykoL",
     "build/chart.7f4d7f29.js": "sha384-I57c9DtU3AOG2kzKqIZkIu0hi1aGYHRZ5QG4LKC9+9slzJnAMttPGXoL2cQG3m6y",
     "build/calendar.9e7cdb6a.js": "sha384-RvFQJC1YvKq9BqRDObc5REPbi9ZiG5/fkqKP1xLJUlFDb2b8WqTR/f4F+hdE9cI1",