Remove redundant cmake policy CMP0048

Instead bump the cmake version.

Author: vimpostor

CMakeLists.txt

@@ -1,5 +1,4 @@
-cmake_minimum_required(VERSION 3.21)
-cmake_policy(SET CMP0048 NEW)
+cmake_minimum_required(VERSION 3.30)
 project(blobdrop VERSION 2.1 DESCRIPTION "Drag and drop files directly out of the terminal")
 
 option(BUILD_TESTING "Build the testing tree.")

src/getopts.cpp

@@ -46,7 +46,7 @@ bool parse(const QStringList &args) {
 		"Do not auto-hide the window while dragging.");
 	QCommandLineOption prefix_opt(QStringList() << "P"
 												<< "prefix",
-		"Specify a remote prefix",
+		"Specify a remote prefix.",
 		"prefix");
 	QCommandLineOption remote_opt(QStringList() << "R"
 												<< "remote",