Issue #1211: Load fonts in background after startup.
Fonts should not be blocking startup as this provides a very bad experience when people have a lot of fonts. This was experienced even more on Windows where loading time are often excessively long. We were already running font loading in a thread, yet were still blocking startup (thread was only so that the loading status GUI could get updated as a feedback). Now we will only start loading and proceed directly to next steps. While fonts are not loaded, the text tool will not be usable, yet all other activities can be performed. (cherry picked from commit 2484dec7d55e75499712d913921d10902d326332)
Showing with 30 additions and 43 deletions