diff --git a/backend/package-lock.json b/backend/package-lock.json
index 3dcc629..d299295 100644
--- a/backend/package-lock.json
+++ b/backend/package-lock.json
@@ -4,15 +4,20 @@
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-      "integrity": "sha1-2UpGSPmxwXnWT6lykSaL22zpQ08=",
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+        "entities": "~2.1.0",
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+          "resolved": "https://registry.npmjs.org/entities/-/entities-2.1.0.tgz",
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+        }
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@@ -753,6 +662,11 @@
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+      "resolved": "https://registry.npmjs.org/meros/-/meros-1.1.4.tgz",
+      "integrity": "sha512-E9ZXfK9iQfG9s73ars9qvvvbSIkJZF5yOo9j4tcwM5tN8mUKfj/EKN5PzOr3ZH0y5wL7dLAHw3RVEfpQV9Q7VQ=="
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@@ -776,14 +690,6 @@
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@@ -841,14 +747,10 @@
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-      "requires": {
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+    "nullthrows": {
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+      "resolved": "https://registry.npmjs.org/nullthrows/-/nullthrows-1.1.1.tgz",
+      "integrity": "sha512-2vPPEi+Z7WqML2jZYddDIfy5Dqb0r2fze2zTxNNknZaFpVHU3mFB3R+DWeJWGVx0ecvttSGlJTI+WG+8Z4cDWw=="
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@@ -863,14 +765,6 @@
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-      "resolved": "https://registry.npmjs.org/once/-/once-1.4.0.tgz",
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@@ -881,11 +775,6 @@
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@@ -1048,14 +937,6 @@
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@@ -1172,11 +1053,6 @@
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@@ -1218,6 +1094,11 @@
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       "integrity": "sha1-uDVx+k2MJbguIxsG46MFXeTKGkc="
     },
+    "toggle-selection": {
+      "version": "1.0.6",
+      "resolved": "https://registry.npmjs.org/toggle-selection/-/toggle-selection-1.0.6.tgz",
+      "integrity": "sha1-bkWxJj8gF/oKzH2J14sVuL932jI="
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@@ -1233,9 +1114,9 @@
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-      "integrity": "sha1-ftUNXg+an7ClczeSWfKndFjVAZI="
+      "version": "1.0.6",
+      "resolved": "https://registry.npmjs.org/uc.micro/-/uc.micro-1.0.6.tgz",
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@@ -1272,10 +1153,10 @@
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-      "integrity": "sha1-nITsLc9oGH/wC8ZOEnS0QhduHIQ="
+    "vscode-languageserver-types": {
+      "version": "3.16.0",
+      "resolved": "https://registry.npmjs.org/vscode-languageserver-types/-/vscode-languageserver-types-3.16.0.tgz",
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@@ -1285,11 +1166,6 @@
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diff --git a/backend/package.json b/backend/package.json
index 2383db6..4282bc8 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -13,7 +13,7 @@
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     "lodash": "^4.17.4",
     "mysql2": "^1.5.1",