[Glitch] Convert easy entrypoints files to Typescript

Port 36909065b5 to glitch-soc

Signed-off-by: Claire <claire.github-309c@sitedethib.com>

app/javascript/flavours/glitch/entrypoints/application.ts

@@ -2,7 +2,7 @@ import '@/entrypoints/public-path';
 
 import { start } from 'flavours/glitch/common';
 import { loadLocale } from 'flavours/glitch/locales';
-import main from "flavours/glitch/main";
+import main from 'flavours/glitch/main';
 import { loadPolyfills } from 'flavours/glitch/polyfills';
 
 start();
@@ -10,6 +10,6 @@ start();
 loadPolyfills()
   .then(loadLocale)
   .then(main)
-  .catch(e => {
+  .catch((e: unknown) => {
     console.error(e);
   });

app/javascript/flavours/glitch/entrypoints/error.ts

@@ -2,7 +2,9 @@ import '@/entrypoints/public-path';
 import ready from 'flavours/glitch/ready';
 
 ready(() => {
-  const image = document.querySelector('img');
+  const image = document.querySelector<HTMLImageElement>('img');
+
+  if (!image) return;
 
   image.addEventListener('mouseenter', () => {
     image.src = '/oops.gif';
@@ -11,4 +13,6 @@ ready(() => {
   image.addEventListener('mouseleave', () => {
     image.src = '/oops.png';
   });
+}).catch((e: unknown) => {
+  console.error(e);
 });

app/javascript/flavours/glitch/entrypoints/share.tsx

@@ -16,7 +16,7 @@ function loaded() {
 
     if (!attr) return;
 
-    const props = JSON.parse(attr);
+    const props = JSON.parse(attr) as object;
     const root = createRoot(mountNode);
 
     root.render(<ComposeContainer {...props} />);
@@ -24,9 +24,13 @@ function loaded() {
 }
 
 function main() {
-  ready(loaded);
+  ready(loaded).catch((error: unknown) => {
+    console.error(error);
+  });
 }
 
-loadPolyfills().then(main).catch(error => {
-  console.error(error);
-});
+loadPolyfills()
+  .then(main)
+  .catch((error: unknown) => {
+    console.error(error);
+  });