Update JS deps, misc tweaks (#35643)

- Update all JS dependencies
- Enable eslint `no-useless-assignment` and fix 2 discovered issues
- Replace `gitea-vscode` svg with new `octicon-vscode`
- Remove now-unused `@ts-expect-error` comments
- Change Monaco wrapping behaviour to match the wrapping in code view:
no wrapping indent and break on any character.

public/assets/img/svg/octicon-vscode.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16" class="svg octicon-vscode" width="16" height="16" aria-hidden="true"><path d="M12.515.537c1.169-1.215 3.48-.226 3.418 1.534a593 593 0 0 1 .062 11.538c.089 1.938-2.439 3.149-3.827 1.851A643 643 0 0 1 1.312 5.996a.93.93 0 0 1-.308-.609.92.92 0 0 1 .194-.655.87.87 0 0 1 1.232-.136l1.493 1.18a641 641 0 0 1 9.708 7.85c.008.011.036-.018.019-.017a606 606 0 0 1 .057-11.226c-1.308 1.157-2.63 2.275-3.926 3.411-.477.416-.948.831-1.424 1.253a.87.87 0 0 1-1.237-.061.9.9 0 0 1-.231-.641.94.94 0 0 1 .27-.628c.452-.456.902-.905 1.36-1.354 1.324-1.302 2.677-2.558 3.996-3.826M2.986 9.734a.8.8 0 0 1 1.184.06.95.95 0 0 1-.057 1.272l-1.228 1.2a.8.8 0 0 1-1.183-.06.95.95 0 0 1 .055-1.272z"/></svg>