refactor: eliminate eslint errors (#920)

* refactor: eliminate eslint errors as many as I can

* refactor: fix more eslint errors in the record module

* LINT: fix @typescript-eslint/unbound-method

* LINT: fix all eslint errors in source code

* LINT: fix as many eslint warnings as possible

Co-authored-by: Justin Halsall <Juice10@users.noreply.github.com>

packages/rrweb-snapshot/src/snapshot.ts

@@ -102,7 +102,14 @@ export function absoluteToStylesheet(
 ): string {
   return (cssText || '').replace(
     URL_IN_CSS_REF,
-    (origin, quote1, path1, quote2, path2, path3) => {
+    (
+      origin: string,
+      quote1: string,
+      path1: string,
+      quote2: string,
+      path2: string,
+      path3: string,
+    ) => {
       const filePath = path1 || path2 || path3;
       const maybeQuote = quote1 || quote2 || '';
       if (!filePath) {
@@ -136,7 +143,9 @@ export function absoluteToStylesheet(
   );
 }
 
+// eslint-disable-next-line no-control-regex
 const SRCSET_NOT_SPACES = /^[^ \t\n\r\u000c]+/; // Don't use \s, to avoid matching non-breaking space
+// eslint-disable-next-line no-control-regex
 const SRCSET_COMMAS_OR_SPACES = /^[, \t\n\r\u000c]+/;
 function getAbsoluteSrcsetString(doc: Document, attributeValue: string) {
   /*
@@ -165,6 +174,7 @@ function getAbsoluteSrcsetString(doc: Document, attributeValue: string) {
   }
 
   const output = [];
+  // eslint-disable-next-line no-constant-condition
   while (true) {
     collectCharacters(SRCSET_COMMAS_OR_SPACES);
     if (pos >= attributeValue.length) {
@@ -182,6 +192,7 @@ function getAbsoluteSrcsetString(doc: Document, attributeValue: string) {
       let descriptorsStr = '';
       url = absoluteToDoc(doc, url);
       let inParens = false;
+      // eslint-disable-next-line no-constant-condition
       while (true) {
         const c = attributeValue.charAt(pos);
         if (c === '') {
@@ -554,7 +565,7 @@ function serializeTextNode(
       }
     } catch (err) {
       console.warn(
-        `Cannot get CSS styles from text's parentNode. Error: ${err}`,
+        `Cannot get CSS styles from text's parentNode. Error: ${err as string}`,
         n,
       );
     }
@@ -740,7 +751,7 @@ function serializeElementNode(
         );
       } catch (err) {
         console.warn(
-          `Cannot inline img src=${image.currentSrc}! Error: ${err}`,
+          `Cannot inline img src=${image.currentSrc}! Error: ${err as string}`,
         );
       }
       oldValue