[PORT] Fix a number of typescript issues (gitea#32308)

- Prefer
[window.location.assign](https://developer.mozilla.org/en-US/docs/Web/API/Location/assign)
over assigning to
[window.location](https://developer.mozilla.org/en-US/docs/Web/API/Window/location)
which typescript does not like. This works in all browsers including
PaleMoon.
- Fix all typescript issues in `web_src/js/webcomponents`, no behaviour
changes.
- ~~Workaround bug in `@typescript-eslint/no-unnecessary-type-assertion`
rule.~~
- Omit vendored file from type checks.
- `tsc` error count is reduce by 53 with these changes.

---
Conflict resolution: Choose our version.
Done differently: Everything related to typescript types isn't ported.
Use `window.location.href` instead of `String(window.location)`, thanks
@viceice!

(cherry picked from commit 810782302652d73c4f7249c4c3df8a7e85bae5f0)

web_src/js/components/DiffCommitSelector.vue

@@ -140,11 +140,11 @@ export default {
       Object.assign(this.locale, results.locale);
     },
     showAllChanges() {
-      window.location = `${this.issueLink}/files${this.queryParams}`;
+      window.location.assign(`${this.issueLink}/files${this.queryParams}`);
     },
     /** Called when user clicks on since last review */
     changesSinceLastReviewClick() {
-      window.location = `${this.issueLink}/files/${this.lastReviewCommitSha}..${this.commits.at(-1).id}${this.queryParams}`;
+      window.location.assign(`${this.issueLink}/files/${this.lastReviewCommitSha}..${this.commits.at(-1).id}${this.queryParams}`);
     },
     /** Clicking on a single commit opens this specific commit */
     commitClicked(commitId, newWindow = false) {
@@ -152,7 +152,7 @@ export default {
       if (newWindow) {
         window.open(url);
       } else {
-        window.location = url;
+        window.location.assign(url);
       }
     },
     /**
@@ -174,14 +174,14 @@ export default {
           const lastCommitIdx = this.commits.findLastIndex((x) => x.selected);
           if (lastCommitIdx === this.commits.length - 1) {
             // user selected all commits - just show the normal diff page
-            window.location = `${this.issueLink}/files${this.queryParams}`;
+            window.location.assign(`${this.issueLink}/files${this.queryParams}`);
           } else {
-            window.location = `${this.issueLink}/files/${this.commits[lastCommitIdx].id}${this.queryParams}`;
+            window.location.assign(`${this.issueLink}/files/${this.commits[lastCommitIdx].id}${this.queryParams}`);
           }
         } else {
           const start = this.commits[this.commits.findIndex((x) => x.selected) - 1].id;
           const end = this.commits.findLast((x) => x.selected).id;
-          window.location = `${this.issueLink}/files/${start}..${end}${this.queryParams}`;
+          window.location.assign(`${this.issueLink}/files/${start}..${end}${this.queryParams}`);
         }
       }
     },

web_src/js/features/repo-issue.js

@@ -119,7 +119,7 @@ function excludeLabel(item) {
   const regStr = `labels=((?:-?[0-9]+%2c)*)(${id})((?:%2c-?[0-9]+)*)&`;
   const newStr = 'labels=$1-$2$3&';
 
-  window.location = href.replace(new RegExp(regStr), newStr);
+  window.location.assign(href.replace(new RegExp(regStr), newStr));
 }
 
 export function initRepoIssueSidebarList() {

web_src/js/webcomponents/origin-url.test.js

@@ -1,9 +1,9 @@
 import {toOriginUrl} from './origin-url.js';
 
 test('toOriginUrl', () => {
-  const oldLocation = window.location;
+  const oldLocation = window.location.href;
   for (const origin of ['https://example.com', 'https://example.com:3000']) {
-    window.location = new URL(`${origin}/`);
+    window.location.assign(`${origin}/`);
     expect(toOriginUrl('/')).toEqual(`${origin}/`);
     expect(toOriginUrl('/org/repo.git')).toEqual(`${origin}/org/repo.git`);
     expect(toOriginUrl('https://another.com')).toEqual(`${origin}/`);
@@ -13,5 +13,5 @@ test('toOriginUrl', () => {
     expect(toOriginUrl('https://another.com:4000/')).toEqual(`${origin}/`);
     expect(toOriginUrl('https://another.com:4000/org/repo.git')).toEqual(`${origin}/org/repo.git`);
   }
-  window.location = oldLocation;
+  window.location.assign(oldLocation);
 });