several improvements

package-lock.json

@@ -6732,6 +6732,14 @@
         }
       }
     },
+    "@rkusa/linebreak": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/@rkusa/linebreak/-/linebreak-1.0.0.tgz",
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+      "requires": {
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+      }
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       "resolved": "https://registry.npmjs.org/@scarf/scarf/-/scarf-1.1.0.tgz",
@@ -22250,6 +22258,15 @@
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+    "opentype.js": {
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+      "resolved": "https://registry.npmjs.org/opentype.js/-/opentype.js-1.3.3.tgz",
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+        "tiny-inflate": "^1.0.3"
+      }
+    },
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       "resolved": "https://registry.npmjs.org/openurl/-/openurl-1.1.1.tgz",
@@ -22626,6 +22643,41 @@
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+    "pdfjs": {
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+      "resolved": "https://registry.npmjs.org/pdfjs/-/pdfjs-2.4.6.tgz",
+      "integrity": "sha512-bVANz4AmxgNdKd9kjAuJj/KgINaV7ZMDsRjDe6VgwQMpu9lcQMh6QjyaajSx0IGlAwAD59K8kbJA3wuVHNicwQ==",
+      "requires": {
+        "@rkusa/linebreak": "^1.0.0",
+        "opentype.js": "^1.3.3",
+        "pako": "^2.0.3",
+        "readable-stream": "^3.6.0",
+        "unorm": "^1.6.0",
+        "uuid": "^8.3.1"
+      },
+      "dependencies": {
+        "pako": {
+          "version": "2.0.4",
+          "resolved": "https://registry.npmjs.org/pako/-/pako-2.0.4.tgz",
+          "integrity": "sha512-v8tweI900AUkZN6heMU/4Uy4cXRc2AYNRggVmTR+dEncawDJgCdLMximOVA2p4qO57WMynangsfGRb5WD6L1Bg=="
+        },
+        "readable-stream": {
+          "version": "3.6.0",
+          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-3.6.0.tgz",
+          "integrity": "sha512-BViHy7LKeTz4oNnkcLJ+lVSL6vpiFeX6/d3oSH8zCW7UxP2onchk+vTGB143xuFjHS3deTgkKoXXymXqymiIdA==",
+          "requires": {
+            "inherits": "^2.0.3",
+            "string_decoder": "^1.1.1",
+            "util-deprecate": "^1.0.1"
+          }
+        },
+        "uuid": {
+          "version": "8.3.2",
+          "resolved": "https://registry.npmjs.org/uuid/-/uuid-8.3.2.tgz",
+          "integrity": "sha512-+NYs2QeMWy+GWFOEm9xnn6HCDp0l7QBD7ml8zLUmJ+93Q5NF0NocErnwkTkXVFNiX3/fpC6afS8Dhb/gz7R7eg=="
+        }
+      }
+    },
     "pdfjs-dist": {
       "version": "2.7.570",
       "resolved": "https://registry.npmjs.org/pdfjs-dist/-/pdfjs-dist-2.7.570.tgz",
@@ -27046,8 +27098,7 @@
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       "resolved": "https://registry.npmjs.org/string.prototype.codepointat/-/string.prototype.codepointat-0.2.1.tgz",
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-      "dev": true
+      "integrity": "sha512-2cBVCj6I4IOvEnjgO/hWqXjqBGsY+zwPmHl12Srk9IXSZ56Jwwmy+66XO5Iut/oQVR7t5ihYdLB0GMa4alEUcg=="
     },
     "string.prototype.trimend": {
       "version": "1.0.3",
@@ -27591,6 +27642,11 @@
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       "dev": true
     },
+    "tiny-inflate": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/tiny-inflate/-/tiny-inflate-1.0.3.tgz",
+      "integrity": "sha512-pkY1fj1cKHb2seWDy0B16HeWyczlJA9/WW3u3c4z/NiWDsO3DOU5D7nhTLE9CF0yXv/QZFY7sEJmj24dK+Rrqw=="
+    },
     "tmp": {
       "version": "0.0.33",
       "resolved": "https://registry.npmjs.org/tmp/-/tmp-0.0.33.tgz",
@@ -29056,6 +29112,22 @@
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       "dev": true
     },
+    "unicode-trie": {
+      "version": "0.3.1",
+      "resolved": "https://registry.npmjs.org/unicode-trie/-/unicode-trie-0.3.1.tgz",
+      "integrity": "sha1-1nHd3YkQGgi6w3tqUWEBBgIFIIU=",
+      "requires": {
+        "pako": "^0.2.5",
+        "tiny-inflate": "^1.0.0"
+      },
+      "dependencies": {
+        "pako": {
+          "version": "0.2.9",
+          "resolved": "https://registry.npmjs.org/pako/-/pako-0.2.9.tgz",
+          "integrity": "sha1-8/dSL073gjSNqBYbrZ7P1Rv4OnU="
+        }
+      }
+    },
     "union": {
       "version": "0.5.0",
       "resolved": "https://registry.npmjs.org/union/-/union-0.5.0.tgz",
@@ -29120,8 +29192,7 @@
     "unorm": {
       "version": "1.6.0",
       "resolved": "https://registry.npmjs.org/unorm/-/unorm-1.6.0.tgz",
-      "integrity": "sha512-b2/KCUlYZUeA7JFUuRJZPUtr4gZvBh7tavtv4fvk4+KV9pfGiR6CQAQAWl49ZpR3ts2dk4FYkP7EIgDJoiOLDA==",
-      "dev": true
+      "integrity": "sha512-b2/KCUlYZUeA7JFUuRJZPUtr4gZvBh7tavtv4fvk4+KV9pfGiR6CQAQAWl49ZpR3ts2dk4FYkP7EIgDJoiOLDA=="
     },
     "unpipe": {
       "version": "1.0.0",