Misc. typos (#8694)

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

spec/controllers/concerns/localized_spec.rb

@@ -28,7 +28,7 @@ describe ApplicationController, type: :controller do
       expect(I18n.locale).to eq :fa
     end
 
-    it 'sets available and compatible langauge if none of available languages are preferred' do
+    it 'sets available and compatible language if none of available languages are preferred' do
       request.headers['Accept-Language'] = 'fa-IR'
       get 'success'
       expect(I18n.locale).to eq :fa

spec/controllers/emojis_controller_spec.rb

@@ -6,11 +6,11 @@ describe EmojisController do
   let(:emoji) { Fabricate(:custom_emoji) }
 
   describe 'GET #show' do
-    subject(:responce) { get :show, params: { id: emoji.id, format: :json } }
+    subject(:response) { get :show, params: { id: emoji.id, format: :json } }
     subject(:body) { JSON.parse(response.body, symbolize_names: true) }
 
     it 'returns the right response' do
-      expect(responce).to have_http_status 200
+      expect(response).to have_http_status 200
       expect(body[:name]).to eq ':coolcat:'
     end
   end

spec/controllers/stream_entries_controller_spec.rb

@@ -4,7 +4,7 @@ RSpec.describe StreamEntriesController, type: :controller do
   render_views
 
   shared_examples 'before_action' do |route|
-    context 'when account is not suspended anbd stream_entry is available' do
+    context 'when account is not suspended and stream_entry is available' do
       it 'assigns instance variables' do
         status = Fabricate(:status)