Please take a look at “Quick Launch” by Jaume Singla, when the first non-beta release of SailfishOS 5.0 has been published.
Unfortunately the SailfishOS:Chum community repository, which hosts this app is not easily accessible, until then. As a slightly tedious workaround on a Jolla C2 phone you may manually download this RPM file of the SailfishOS:Chum GUI application and install it, then enter 4.6.0.15 in its settings, which lets you search and install “Quick Launch” (and all other software in the SailfishOS:Chum community repository) easily.