Misc JS linting and naming tweaks (#10652)

- lowercase all js filenames except Vue components
- enable new lint rules, mostly focused on shorter code
- autofix new lint violations
- apply misc transformations indexOf -> includes and onevent-> addEventListener

Co-authored-by: Antoine GIRARD <sapk@users.noreply.github.com>

web_src/js/features/contextpopup.js

@@ -0,0 +1,76 @@
+import {svg} from '../utils.js';
+
+const {AppSubUrl} = window.config;
+
+export default function initContextPopups() {
+  const refIssues = $('.ref-issue');
+  if (!refIssues.length) return;
+
+  refIssues.each(function () {
+    const [index, _issues, repo, owner] = $(this).attr('href').replace(/[#?].*$/, '').split('/').reverse();
+    issuePopup(owner, repo, index, $(this));
+  });
+}
+
+function issuePopup(owner, repo, index, $element) {
+  $.get(`${AppSubUrl}/api/v1/repos/${owner}/${repo}/issues/${index}`, (issue) => {
+    const createdAt = new Date(issue.created_at).toLocaleDateString(undefined, {year: 'numeric', month: 'short', day: 'numeric'});
+
+    let body = issue.body.replace(/\n+/g, ' ');
+    if (body.length > 85) {
+      body = `${body.substring(0, 85)}...`;
+    }
+
+    let labels = '';
+    for (let i = 0; i < issue.labels.length; i++) {
+      const label = issue.labels[i];
+      const labelName = emojify.replace(label.name);
+      const red = parseInt(label.color.substring(0, 2), 16);
+      const green = parseInt(label.color.substring(2, 4), 16);
+      const blue = parseInt(label.color.substring(4, 6), 16);
+      let color = '#ffffff';
+      if ((red * 0.299 + green * 0.587 + blue * 0.114) > 125) {
+        color = '#000000';
+      }
+      labels += `<div class="ui label" style="color: ${color}; background-color:#${label.color};">${labelName}</div>`;
+    }
+    if (labels.length > 0) {
+      labels = `<p>${labels}</p>`;
+    }
+
+    let octicon, color;
+    if (issue.pull_request !== null) {
+      if (issue.state === 'open') {
+        color = 'green';
+        octicon = 'octicon-git-pull-request'; // Open PR
+      } else if (issue.pull_request.merged === true) {
+        color = 'purple';
+        octicon = 'octicon-git-merge'; // Merged PR
+      } else {
+        color = 'red';
+        octicon = 'octicon-git-pull-request'; // Closed PR
+      }
+    } else if (issue.state === 'open') {
+      color = 'green';
+      octicon = 'octicon-issue-opened'; // Open Issue
+    } else {
+      color = 'red';
+      octicon = 'octicon-issue-closed'; // Closed Issue
+    }
+
+    $element.popup({
+      variation: 'wide',
+      delay: {
+        show: 250
+      },
+      html: `
+<div>
+  <p><small>${issue.repository.full_name} on ${createdAt}</small></p>
+  <p><span class="${color}">${svg(octicon, 16)}</span> <strong>${issue.title}</strong> #${index}</p>
+  <p>${body}</p>
+  ${labels}
+</div>
+`
+    });
+  });
+}