Remove 'selector-16' which the macos emoji picker inserts, and handle it being present

test/test-sugar

@@ -4,12 +4,12 @@ testGoodMessageShouldBeGreen() {
   echo '
   #!/usr/bin/env bash
 
-  ⚡️hello() {
+  ⚡hello() {
     _good-message "hello"
   }
   ' > go
 
-  echo "source $REPO_ROOT/⚡️" >> go
+  echo "source $REPO_ROOT/⚡" >> go
   chmod +x go
 
   try ./go hello
@@ -20,12 +20,12 @@ testBadMessageShouldBeRed() {
   echo '
   #!/usr/bin/env bash
 
-  ⚡️hello() {
+  ⚡hello() {
     _bad-message "hello"
   }
   ' > go
 
-  echo "source $REPO_ROOT/⚡️" >> go
+  echo "source $REPO_ROOT/⚡" >> go
   chmod +x go
 
   try ./go hello