feat(gemensam-planering): Implemented gemensam-planering form. (TV-700)

Squashed commit of the following:

commit 2d07f37e30009c7f701af35aed65839535044bb3
Author: Erik Tiekstra <erik.tiekstra@arbetsformedlingen.se>
Date:   Wed Oct 6 09:33:21 2021 +0200

    Updated error handling

commit 12290b9436a06ecf0b2b8509016b14748ca17a18
Author: Erik Tiekstra <erik.tiekstra@arbetsformedlingen.se>
Date:   Wed Oct 6 09:10:48 2021 +0200

    Updated after PR

commit cc2fb38528069819acbc39c7b1f6d71ecae666a1
Author: Erik Tiekstra <erik.tiekstra@arbetsformedlingen.se>
Date:   Wed Oct 6 08:46:33 2021 +0200

    Updated proxy.conf

commit ee919de929d7b7316cd7050015fbad9c662b8718
Author: Erik Tiekstra <erik.tiekstra@arbetsformedlingen.se>
Date:   Wed Oct 6 08:44:00 2021 +0200

    Updated api-endpoint

commit 249ef70e14fa8db0c388ffb27f5173815a07c768
Merge: c8296cbf cc0a9aae
Author: Erik Tiekstra <erik.tiekstra@arbetsformedlingen.se>
Date:   Wed Oct 6 08:39:43 2021 +0200

    Merge branch 'develop' into feature/TV-700-erik

commit c8296cbff42d747df8c17cf3858f22956fd1e910
Author: Erik Tiekstra <erik.tiekstra@arbetsformedlingen.se>
Date:   Wed Oct 6 07:44:41 2021 +0200

    Fixed some linting and tests

commit ec0bf7cd3616859742e461ffd65a2289f5c50cd6
Author: Erik Tiekstra <erik.tiekstra@arbetsformedlingen.se>
Date:   Wed Oct 6 07:37:28 2021 +0200

    Changes after PR

commit aa6cee5248299056e043170b8803335529277062
Author: Erik Tiekstra <erik.tiekstra@arbetsformedlingen.se>
Date:   Tue Oct 5 14:56:45 2021 +0200

    Fixed some styling

commit 86de8306679fcff5ed8595f97f696cb43f38f4ac
Merge: 3b1822d8 5cee9695
Author: Erik Tiekstra <erik.tiekstra@arbetsformedlingen.se>
Date:   Tue Oct 5 14:46:52 2021 +0200

    Merged develop and resolved conflicts

commit 3b1822d8c8f197b789d1db5832b8e99351e8afa3
Author: Erik Tiekstra <erik.tiekstra@arbetsformedlingen.se>
Date:   Tue Oct 5 14:22:06 2021 +0200

    Updated GP

commit a63dfb716a3888f3e5830fe224de4cd16b1922c2
Merge: e2a8cb1c 07ec3c4a
Author: Erik Tiekstra <erik.tiekstra@arbetsformedlingen.se>
Date:   Tue Oct 5 07:29:23 2021 +0200

    Merge branch 'develop' into feature/TV-700

commit e2a8cb1cef2ada931f8a82ae0e9849aabb77ac4d
Author: Chingiz <chingiz.esenbaev@arbetsformedlingen.se>
Date:   Mon Oct 4 20:16:42 2021 +0200

    lamnas over till team 1

config/proxy.conf.json

@@ -1,4 +1,9 @@
 {
+  "/api/rapporter/gemensam-planering": {
+    "target": "https://mina-sidor-fa-utv.tocp.arbetsformedlingen.se",
+    "secure": false,
+    "changeOrigin": true
+  },
   "/api": {
     "target": "https://mina-sidor-fa-test.tocp.arbetsformedlingen.se",
     "secure": false,