Misc. typos (#8694)

Found via `codespell -q 3 --skip="./app/javascript/mastodon/locales,./config/locales"`

config/environments/test.rb

@@ -23,7 +23,7 @@ Rails.application.configure do
   config.consider_all_requests_local       = true
   config.action_controller.perform_caching = false
 
-  # The default store, file_store is shared by processses parallely executed
+  # The default store, file_store is shared by processes parallelly executed
   # and should not be used.
   config.cache_store = :memory_store
 

config/initializers/simple_form.rb

@@ -116,7 +116,7 @@ SimpleForm.setup do |config|
   # You can define the class to use on all labels. Default is nil.
   # config.label_class = nil
 
-  # You can define the default class to be used on forms. Can be overriden
+  # You can define the default class to be used on forms. Can be overridden
   # with `html: { :class }`. Defaulting to none.
   # config.default_form_class = nil
 

config/initializers/twitter_regex.rb

@@ -28,7 +28,7 @@ module Twitter
     )/iox
     REGEXEN[:valid_url] = %r{
       (                                                                                     #   $1 total match
-        (#{REGEXEN[:valid_url_preceding_chars]})                                            #   $2 Preceeding chracter
+        (#{REGEXEN[:valid_url_preceding_chars]})                                            #   $2 Preceding character
         (                                                                                   #   $3 URL
           ((https?|dat|dweb|ipfs|ipns|ssb|gopher):\/\/)?                                    #   $4 Protocol (optional)
           (#{REGEXEN[:valid_domain]})                                                       #   $5 Domain(s)