Fix spelling errors

Author: nickygerritsen

ChangeLog

@@ -346,7 +346,7 @@ Version 7.1.0 - 25 September 2019
  - Upgrade Symfony and dependencies to version 4.3.
  - Use Doctrine for migrations and initial data.
  - Add option (enabled by default) to limit files passed to
-   language compilers by langauge extension list.
+   language compilers by language extension list.
  - Add option to add a whole team category to a contest.
  - Allow admin to specify print command using configuration setting.
  - Show metadata for judging runs.

webapp/migrations/Version20251024122021.php

@@ -23,7 +23,7 @@ public function up(Schema $schema): void
         // - First we drop the foreign keys from tables referencing langid. We also drop compound
         // - Then we add a temporary integer langid column to all these tables, since we can't
         //   change the langid column itself, because MySQL will try to convert the strings to
-        //   integers and fail. We set the langid column in the langauge table to auto increment,
+        //   integers and fail. We set the langid column in the language table to auto increment,
         //   so it's filled by MySQL.
         // - Now we copy the langid_int values to other tables.
         // - Then we drop the old langid columns and drop any (compound) primary keys that use it.