chore: Move to Typescript (#2783)

This PR moves the entire project to Typescript. Due to the ~1000 ignores this will lead to a messy codebase for a while, but the churn is worth it – all of those ignore comments are places that were never type-safe previously.

closes #1282

app/components/CircularProgressBar.tsx

@@ -0,0 +1,80 @@
+import React from "react";
+import styled, { useTheme } from "styled-components";
+
+const cleanPercentage = (percentage: number) => {
+  const tooLow = !Number.isFinite(+percentage) || percentage < 0;
+  const tooHigh = percentage > 100;
+  return tooLow ? 0 : tooHigh ? 100 : +percentage;
+};
+
+const Circle = ({
+  color,
+  percentage,
+  offset,
+}: {
+  color: string;
+  percentage?: number;
+  offset: number;
+}) => {
+  const radius = offset * 0.7;
+  const circumference = 2 * Math.PI * radius;
+  let strokePercentage;
+
+  if (percentage) {
+    // because the circle is so small, anything greater than 85% appears like 100%
+    percentage = percentage > 85 && percentage < 100 ? 85 : percentage;
+    strokePercentage = percentage
+      ? ((100 - percentage) * circumference) / 100
+      : 0;
+  }
+
+  return (
+    <circle
+      r={radius}
+      cx={offset}
+      cy={offset}
+      fill="none"
+      stroke={strokePercentage !== circumference ? color : ""}
+      strokeWidth={2.5}
+      strokeDasharray={circumference}
+      strokeDashoffset={percentage ? strokePercentage : 0}
+      strokeLinecap="round"
+      style={{
+        transition: "stroke-dashoffset 0.6s ease 0s",
+      }}
+    ></circle>
+  );
+};
+
+const CircularProgressBar = ({
+  percentage,
+  size = 16,
+}: {
+  percentage: number;
+  size?: number;
+}) => {
+  const theme = useTheme();
+  percentage = cleanPercentage(percentage);
+  const offset = Math.floor(size / 2);
+
+  return (
+    <SVG width={size} height={size}>
+      <g transform={`rotate(-90 ${offset} ${offset})`}>
+        <Circle color={theme.progressBarBackground} offset={offset} />
+        {percentage > 0 && (
+          <Circle
+            color={theme.primary}
+            percentage={percentage}
+            offset={offset}
+          />
+        )}
+      </g>
+    </SVG>
+  );
+};
+
+const SVG = styled.svg`
+  flex-shrink: 0;
+`;
+
+export default CircularProgressBar;