Add type checking and JSDoc comments to some utils

package-lock.json

@@ -52,8 +52,12 @@
                 "sillytavern": "server.js"
             },
             "devDependencies": {
+                "@popperjs/core": "^2.11.8",
+                "@types/moment": "^2.13.0",
+                "dompurify": "^3.0.5",
                 "pkg": "^5.8.1",
                 "pkg-fetch": "^3.5.2",
+                "showdown": "^2.1.0",
                 "toastr": "^2.1.4"
             }
         },
@@ -645,11 +649,31 @@
                 "node": ">= 8"
             }
         },
+        "node_modules/@popperjs/core": {
+            "version": "2.11.8",
+            "resolved": "https://registry.npmjs.org/@popperjs/core/-/core-2.11.8.tgz",
+            "integrity": "sha512-P1st0aksCrn9sGZhp8GMYwBnQsbvAWsZAX44oXNNvLHGqAOcoVxmjZiohstwQ7SqKnbR47akdNi+uleWD8+g6A==",
+            "dev": true,
+            "funding": {
+                "type": "opencollective",
+                "url": "https://opencollective.com/popperjs"
+            }
+        },
         "node_modules/@tokenizer/token": {
             "version": "0.3.0",
             "resolved": "https://registry.npmjs.org/@tokenizer/token/-/token-0.3.0.tgz",
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         },
+        "node_modules/@types/moment": {
+            "version": "2.13.0",
+            "resolved": "https://registry.npmjs.org/@types/moment/-/moment-2.13.0.tgz",
+            "integrity": "sha512-DyuyYGpV6r+4Z1bUznLi/Y7HpGn4iQ4IVcGn8zrr1P4KotKLdH0sbK1TFR6RGyX6B+G8u83wCzL+bpawKU/hdQ==",
+            "deprecated": "This is a stub types definition for Moment (https://github.com/moment/moment). Moment provides its own type definitions, so you don't need @types/moment installed!",
+            "dev": true,
+            "dependencies": {
+                "moment": "*"
+            }
+        },
         "node_modules/@types/node": {
             "version": "16.9.1",
             "resolved": "https://registry.npmjs.org/@types/node/-/node-16.9.1.tgz",
@@ -1028,6 +1052,15 @@
             "resolved": "https://registry.npmjs.org/command-exists/-/command-exists-1.2.9.tgz",
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         },
+        "node_modules/commander": {
+            "version": "9.5.0",
+            "resolved": "https://registry.npmjs.org/commander/-/commander-9.5.0.tgz",
+            "integrity": "sha512-KRs7WVDKg86PWiuAqhDrAQnTXZKraVcCc6vFdL14qrZ/DcWwuRo7VoiYXalXO7S5GKpqYiVEwCbgFDfxNHKJBQ==",
+            "dev": true,
+            "engines": {
+                "node": "^12.20.0 || >=14"
+            }
+        },
         "node_modules/compressible": {
             "version": "2.0.18",
             "resolved": "https://registry.npmjs.org/compressible/-/compressible-2.0.18.tgz",
@@ -1265,6 +1298,12 @@
             "resolved": "https://registry.npmjs.org/dom-walk/-/dom-walk-0.1.2.tgz",
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         },
+        "node_modules/dompurify": {
+            "version": "3.0.5",
+            "resolved": "https://registry.npmjs.org/dompurify/-/dompurify-3.0.5.tgz",
+            "integrity": "sha512-F9e6wPGtY+8KNMRAVfxeCOHU0/NPWMSENNq4pQctuXRqqdEPW7q3CrLbR5Nse044WwacyjHGOMlvNsBe1y6z9A==",
+            "dev": true
+        },
         "node_modules/ee-first": {
             "version": "1.1.1",
             "resolved": "https://registry.npmjs.org/ee-first/-/ee-first-1.1.1.tgz",
@@ -2157,6 +2196,15 @@
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             "dev": true
         },
+        "node_modules/moment": {
+            "version": "2.29.4",
+            "resolved": "https://registry.npmjs.org/moment/-/moment-2.29.4.tgz",
+            "integrity": "sha512-5LC9SOxjSc2HF6vO2CyuTDNivEdoz2IvyJJGj6X8DJ0eFyfszE0QiEd+iXmBvUP3WHxSjFH/vIsA0EN00cgr8w==",
+            "dev": true,
+            "engines": {
+                "node": "*"
+            }
+        },
         "node_modules/ms": {
             "version": "2.0.0",
             "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
@@ -3069,6 +3117,22 @@
             "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.2.0.tgz",
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         },
+        "node_modules/showdown": {
+            "version": "2.1.0",
+            "resolved": "https://registry.npmjs.org/showdown/-/showdown-2.1.0.tgz",
+            "integrity": "sha512-/6NVYu4U819R2pUIk79n67SYgJHWCce0a5xTP979WbNp0FL9MN1I1QK662IDU1b6JzKTvmhgI7T7JYIxBi3kMQ==",
+            "dev": true,
+            "dependencies": {
+                "commander": "^9.0.0"
+            },
+            "bin": {
+                "showdown": "bin/showdown.js"
+            },
+            "funding": {
+                "type": "individual",
+                "url": "https://www.paypal.me/tiviesantos"
+            }
+        },
         "node_modules/side-channel": {
             "version": "1.0.4",
             "resolved": "https://registry.npmjs.org/side-channel/-/side-channel-1.0.4.tgz",