Add runtime/pgAdmin4 to .gitignore, and re-order entries for ease of maintenance.

.gitignore

@@ -1,35 +1,35 @@
+*.autosave
 *.db
+*.diff
+*.o
+*.patch
+*.psp
 *.pyc
 *.pyo
-*.o
-*.psp
-*.diff
-*.patch
-*.autosave
-_build
-build-*
+*.swo
+*.swp
 .DS_Store
 .idea
+/dist
+/mac-build
+/pip-build
+/src-build
+/win-build
+_build
+build-*
+pgadmin4.log
+pkg/win32/installer.iss
 runtime/.qmake.cache
+runtime/.qmake.stash
 runtime/Makefile
+runtime/Makefile.Debug
+runtime/Makefile.Release
 runtime/moc_BrowserWindow.cpp
 runtime/moc_Server.cpp
 runtime/pgAdmin4.app/
 runtime/pgAdmin4.pro.user*
+runtime/pgAdmin4_resource.rc
+runtime/release/
 runtime/ui_BrowserWindow.h
-runtime/.qmake.stash
 web/config_local.py
 web/regression/test_config.json
-pgadmin4.log
-*.swp
-*.swo
-/mac-build
-/src-build
-/pip-build
-/win-build
-/dist
-pkg/win32/installer.iss
-runtime/Makefile.Debug
-runtime/Makefile.Release
-runtime/release/
-runtime/pgAdmin4_resource.rc