added all submissions tab in problemset

Author: cs-mshah

src/manifest.json

@@ -48,7 +48,8 @@
         "problemset.js"
       ],
       "matches": [
-        "https://*.codeforces.com/problemset/problem/*"
+        "https://*.codeforces.com/problemset/problem/*",
+        "https://*.codeforces.com/contest/*/problem/*"
       ],
       "run_at": "document_idle"
     }

src/problemset.js

@@ -0,0 +1,36 @@
+chrome.storage.sync.get('problemset', function(data){
+    // if option disabled, return, else inject script
+    if(!data.problemset){
+        return;
+    }
+
+    // global page constants
+    const contestURL = $('#sidebar th a').attr('href'); // '/contest/<no.>'
+    const probLetter = $('.header > .title').text()[0];
+
+    // add all submissions tab to the menu
+    const tab = $('.second-level-menu-list')[0].lastElementChild;
+    const allSubmissions = $(tab).clone(true)[0];
+    const allSubmissionsURL = contestURL + '/status/' + probLetter;
+    $('a', allSubmissions).text('all submissions');
+    $('a', allSubmissions).attr('href', allSubmissionsURL);
+    tab.after(allSubmissions);
+
+    // add star favourite problem icon
+    const starContest = $('#sidebar > div:nth-child(1) > table > tbody > tr:last-child');
+    $('> td > span > center > span > img', starContest).attr('alt', 'Add contest to favourites');
+    $('> td > span > center > span > img', starContest).attr('title', 'Add contest to favourites');
+
+    const starProblem = $(('<tr><td class="left bottom" colspan="1"><span class="contest-state-regular">Problem: <span id="put"></span></span></td></tr>'));
+    $(starContest).after(starProblem);
+
+    // make selector to get probem-star
+    const row = probLetter.charCodeAt(0) - 65 + 2;
+    const selector = "#pageContent > div.datatable > div:nth-child(6) > table > tbody > tr:nth-child("+String(row)+") span:nth-child(2) > span >img"
+    const url = contestURL + ' ' + selector;
+
+    $("#put").load(url, function () {
+        const star = $('#put')[0].childNodes[0];
+        
+    });
+});