Revert font awesome 5 changes

We are still pushing ahead on this 100% just need a bit longer to prepare
all plugins

test/javascripts/acceptance/composer-actions-test.js.es6

@@ -88,7 +88,11 @@ QUnit.test("replying to post - toggle_whisper", async assert => {
   await composerActions.expand();
   await composerActions.selectRowByValue("toggle_whisper");
 
-  assert.ok(find(".composer-fields .whisper .d-icon-eye-slash").length === 1);
+  assert.ok(
+    find(".composer-fields .whisper")
+      .text()
+      .indexOf(I18n.t("composer.whisper")) > 0
+  );
 });
 
 QUnit.test("replying to post - reply_as_new_topic", async assert => {

test/javascripts/acceptance/composer-test.js.es6

@@ -375,7 +375,9 @@ QUnit.test("Composer can toggle whispers", async assert => {
   );
 
   assert.ok(
-    find(".composer-fields .whisper .d-icon-eye-slash").length === 1,
+    find(".composer-fields .whisper")
+      .text()
+      .indexOf(I18n.t("composer.whisper")) > 0,
     "it sets the post type to whisper"
   );
 
@@ -385,7 +387,9 @@ QUnit.test("Composer can toggle whispers", async assert => {
   );
 
   assert.ok(
-    find(".composer-fields .whisper .d-icon-eye-slash").length === 0,
+    find(".composer-fields .whisper")
+      .text()
+      .indexOf(I18n.t("composer.whisper")) <= 0,
     "it removes the whisper mode"
   );
 });
@@ -402,7 +406,9 @@ QUnit.test(
     );
 
     assert.ok(
-      find(".composer-fields .whisper .d-icon-eye-slash").length === 1,
+      find(".composer-fields .whisper")
+        .text()
+        .indexOf(I18n.t("composer.whisper")) > 0,
       "it sets the post type to whisper"
     );
 
@@ -411,7 +417,9 @@ QUnit.test(
 
     await click("#create-topic");
     assert.ok(
-      find(".composer-fields .whisper .d-icon-eye-slash").length === 0,
+      find(".composer-fields .whisper")
+        .text()
+        .indexOf(I18n.t("composer.whisper")) === -1,
       "it should reset the state of the composer's model"
     );
 

test/javascripts/acceptance/group-index-test.js.es6

@@ -6,7 +6,7 @@ QUnit.test("Viewing Members as anon user", async assert => {
   await visit("/groups/discourse");
 
   assert.ok(
-    count(".avatar-flair .d-icon-adjust") === 1,
+    count(".avatar-flair .fa-adjust") === 1,
     "it displays the group's avatar flair"
   );
   assert.ok(count(".group-members tr") > 0, "it lists group members");