Removed old Loc.GetString() use instances (#4155)

Co-authored-by: DrSmugleaf <DrSmugleaf@users.noreply.github.com>

Resources/Locale/en-US/shell.ftl

@@ -0,0 +1,33 @@
+### for technical and/or system messages
+
+## General
+
+shell-server-cannot = Server cannot do this.
+shell-command-success = Command successful
+shell-invalid-command = Invalid command.
+shell-invalid-command-specific = Invalid {commandName} command.
+shell-cannot-run-command-from-server = You cannot run this command from the server. 
+shell-only-players-can-run-this-command = Only players can run this command.
+
+## Arguments
+
+shell-need-exactly-one-argument = Need exactly one argument.
+shell-wrong-arguments-number-need-specific = Need {$properAmount} arguments, there were {$currentAmount}.
+shell-argument-must-be-number = Argument must be a number.
+shell-wrong-arguments-number = Wrong number of arguments.
+shell-need-between-arguments = Need {$lower} to {$upper} arguments!
+
+## Guards
+
+shell-entity-is-not-mob = Target entity is not a mob!
+shell-invalid-entity-id = Invalid entity ID.
+shell-invalid-entity-uid = {$uid} is not a valid entity uid
+shell-entity-uid-must-be-number = EntityUid must be a number.
+shell-could-not-find-entity = Could not find entity {$entity}
+shell-could-not-find-entity-with-uid = Could not find entity with uid {$uid}
+shell-entity-with-uid-lacks-component = Entity with uid {$uid} doesn't have a {$componentName} component
+shell-invalid-color-hex = Invalid color hex!
+shell-target-player-does-not-exist = Target player does not exist!
+shell-target-entity-does-not-have-message = Target entity does not have a(n) {$missing}!
+
+