chore: fix typos in spelling (#38100)

* spelling: accidentally

* spelling: announce

* spelling: assembly

* spelling: avoid

* spelling: backend

* spelling: because

* spelling: claimed

* spelling: candidate

* spelling: certification

* spelling: certified

* spelling: challenge

* spelling: circular

* spelling: it isn't

* spelling: coins

* spelling: combination

* spelling: compliant

* spelling: containers

* spelling: concise

* spelling: deprecated

* spelling: development

* spelling: donor

* spelling: error

* spelling: everything

* spelling: exceed

* spelling: exist

* spelling: falsy

* spelling: faulty

* spelling: forward

* spelling: handle

* spelling: indicates

* spelling: initial

* spelling: integers

* spelling: issealed

* spelling: javascript

* spelling: length

* spelling: maximum

* spelling: minimum

* spelling: mutable

* spelling: notifier

* spelling: coordinate

* spelling: passport

* spelling: perform

* spelling: permuter

* spelling: placeholder

* spelling: progressively

* spelling: semantic

* spelling: submission

* spelling: submit

* spelling: translations

* spelling: turquoise

* spelling: visualization

* spelling: without

* spelling: registration

* spelling: representation

client/src/redux/failed-updates-epic.js

@@ -27,7 +27,7 @@ function delay(time = 0, fn) {
   return setTimeout(fn, time);
 }
 
-// check if backenEndProjects have a solution
+// check if backendEndProjects have a solution
 const isSubmitable = failure =>
   failure.payload.challengeType !== backEndProject || failure.payload.solution;
 
@@ -64,7 +64,7 @@ function failedUpdateEpic(action$, state$) {
       const batch = failures.map((update, i) => {
         // we stagger the updates here so we don't hammer the server
         // *********************************************************
-        // progressivly increase additional delay by the amount of updates
+        // progressively increase additional delay by the amount of updates
         // 1st: 100ms delay
         // 2nd: 200ms delay
         // 3rd: 400ms delay