fix compiler warnings in RELEASE mode under Windows

reg. possible uninitialized use of some variables and some unused
parameters
fix #41711: crash on load of score with one-plet
remove community icon
remove tabs in start center
Merge pull request #1555 from MarcSabatella/41711-one-plet

fix #41711: crash on load of score with one-plet
fix #41641: Change Gonville to Gootville

Also includes some updates to the font itself
cosmetic changes on startcenter
Merge pull request #1556 from Jojo-Schmitz/gonville2gootville

fix #41641: Change Gonville to Gootville
Merge pull request #1553 from Jojo-Schmitz/warnungs-release-mode

fix compiler warnings in RELEASE mode under Windows
expose some function to startcenter js
enable inspector in webview if in experimental mode
some cleaning in preferences
show inspector by default