(core) Configure more comprehensive eslint rules for Typescript

Summary:
- Update rules to be more like we've had with tslint
- Switch tsserver plugin to eslint (tsserver makes for a much faster way to lint in editors)
- Apply suggested auto-fixes
- Fix all lint errors and warnings in core/, app/, test/

Test Plan: Some behavior may change subtly (e.g. added missing awaits), relying on existing tests to catch problems.

Reviewers: paulfitz

Reviewed By: paulfitz

Differential Revision: https://phab.getgrist.com/D2785

app/client/components/ViewConfigTab.js

@@ -58,7 +58,7 @@ function ViewConfigTab(options) {
     }) || self.viewSectionData.at(0);
   }));
   this.isDetail = this.autoDispose(ko.computed(function() {
-    return ['detail','single'].includes(this.viewModel.activeSection().parentKey());
+    return ['detail', 'single'].includes(this.viewModel.activeSection().parentKey());
   }, this));
   this.isChart = this.autoDispose(ko.computed(function() {
       return this.viewModel.activeSection().parentKey() === 'chart';}, this));