core/command: rename --instance to --id and --info to --show

Fixes conflicting short flags.

src/core/main.cpp

@@ -267,7 +267,7 @@ int runCommand(int argc, char** argv, QCoreApplication* coreApplication) {
 	auto addInstanceSelection = [&](CLI::App* cmd) {
 		auto* group = cmd->add_option_group("Instance Selection");
 
-		group->add_option("-i,--instance", state.instance.id)
+		group->add_option("-i,--id", state.instance.id)
 		    ->description("The instance id to operate on.\n"
 		                  "You may also use a substring the id as long as it is unique,\n"
 		                  "for example \"abc\" will select \"abcdefg\".");
@@ -360,7 +360,7 @@ int runCommand(int argc, char** argv, QCoreApplication* coreApplication) {
 		                      ->needs(function)
 		                      ->allow_extra_args();
 
-		sub->add_flag("-i,--info", state.ipc.info)
+		sub->add_flag("-s,--show", state.ipc.info)
 		    ->description("Print information about a function or target if given, or all available "
 		                  "targets if not.")
 		    ->excludes(arguments);

src/io/ipchandler.hpp

@@ -112,9 +112,9 @@ class IpcHandlerRegistry;
 ///   }
 /// }
 /// ```
-/// The list of registered targets can be inspected using `qs msg -i`.
+/// The list of registered targets can be inspected using `qs msg -s`.
 /// ```sh
-/// $ qs msg -i
+/// $ qs msg -s
 /// target rect
 ///   function setColor(color: color): void
 ///   function getColor(): color