QR fontSize; routing

package-lock.json

@@ -23,6 +23,7 @@
         "react-router-dom": "^6.4.5",
         "react-scripts": "5.0.1",
         "typescript": "^4.9.4",
+        "use-fit-text": "^2.4.0",
         "web-vitals": "^2.1.4"
       }
     },
@@ -14328,6 +14329,11 @@
       "resolved": "https://registry.npmjs.org/requires-port/-/requires-port-1.0.0.tgz",
       "integrity": "sha512-KigOCHcocU3XODJxsu8i/j8T9tzT4adHiecwORRQ0ZZFcp7ahwXuRU1m+yuO90C5ZUyGeGfocHDI14M3L3yDAQ=="
     },
+    "node_modules/resize-observer-polyfill": {
+      "version": "1.5.1",
+      "resolved": "https://registry.npmjs.org/resize-observer-polyfill/-/resize-observer-polyfill-1.5.1.tgz",
+      "integrity": "sha512-LwZrotdHOo12nQuZlHEmtuXdqGoOD0OhaxopaNFxWzInpEgaLWoVuAMbTzixuosCx2nEG58ngzW3vxdWoxIgdg=="
+    },
     "node_modules/resolve": {
       "version": "1.22.1",
       "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.22.1.tgz",
@@ -15876,6 +15882,17 @@
         "requires-port": "^1.0.0"
       }
     },
+    "node_modules/use-fit-text": {
+      "version": "2.4.0",
+      "resolved": "https://registry.npmjs.org/use-fit-text/-/use-fit-text-2.4.0.tgz",
+      "integrity": "sha512-Iy4LMrXcdxWlyZ5phntMpJMgyXGB1p3tV73y2r0QrZ6f/thPh+/QU3ie6RCXmjF8tHMs20FKMPskXeDYIla/Ww==",
+      "dependencies": {
+        "resize-observer-polyfill": "^1.5.1"
+      },
+      "peerDependencies": {
+        "react": ">=16.8.0"
+      }
+    },
     "node_modules/util-deprecate": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",