refactor(build): use dmgbuild to create dmgs (#1664)

* refactor(appdmg): make dmgs with dmgbuild

* fix(appdmg.sh): typo

* refactor(appdmg.sh): don't generate config on the fly

* fix(dmgbuild): icon file

* fix(gitignore): dmgbuild settings

* chore(resources): update readme with new files

* chore(resources/macos): add missing newline

scripts/install-dependencies.sh

@@ -57,9 +57,7 @@ main() {
     else
       brew install bash ninja sdl2
     fi
-    pip3 install meson
-    cd ~; npm install appdmg; cd -
-    ~/node_modules/appdmg/bin/appdmg.js --version
+    pip3 install meson dmgbuild
   elif [[ "$OSTYPE" == "msys" ]]; then
     if [[ $lhelper == true ]]; then
       pacman --noconfirm -S \