Don't respect editor.fontSize: 0
Don't respect editor.fontSize: 0

toFloat only falls back to the default when the value is NaN, so an
explicit check for 0 is required.

Fixes #11715

Krzysztof-Cieslak/vscode,KattMingMing/vscode,rishii7/vscode,KattMingMing/vscode,matthewshirley/vscode,Zalastax/vscode,cleidigh/vscode,Krzysztof-Cieslak/vscode,0xmohit/vscode,0xmohit/vscode,rishii7/vscode,hoovercj/vscode,microsoft/vscode,microlv/vscode,the-ress/vscode,charlespierce/vscode,the-ress/vscode,hoovercj/vscode,charlespierce/vscode,charlespierce/vscode,veeramarni/vscode,landonepps/vscode,hungys/vscode,Microsoft/vscode,zyml/vscode,zyml/vscode,Krzysztof-Cieslak/vscode,microsoft/vscode,gagangupt16/vscode,hungys/vscode,microlv/vscode,hashhar/vscode,mjbvz/vscode,hashhar/vscode,hashhar/vscode,jchadwick/vscode,Zalastax/vscode,Zalastax/vscode,landonepps/vscode,Microsoft/vscode,microsoft/vscode,hashhar/vscode,eamodio/vscode,hoovercj/vscode,cleidigh/vscode,zyml/vscode,KattMingMing/vscode,gagangupt16/vscode,Krzysztof-Cieslak/vscode,KattMingMing/vscode,microsoft/vscode,KattMingMing/vscode,gagangupt16/vscode,joaomoreno/vscode,cleidigh/vscode,cleidigh/vscode,the-ress/vscode,radshit/vscode,hashhar/vscode,joaomoreno/vscode,veeramarni/vscode,Microsoft/vscode,joaomoreno/vscode,eamodio/vscode,joaomoreno/vscode,Zalastax/vscode,hashhar/vscode,veeramarni/vscode,Krzysztof-Cieslak/vscode,microlv/vscode,cleidigh/vscode,0xmohit/vscode,matthewshirley/vscode,gagangupt16/vscode,charlespierce/vscode,KattMingMing/vscode,eamodio/vscode,radshit/vscode,stringham/vscode,veeramarni/vscode,veeramarni/vscode,zyml/vscode,gagangupt16/vscode,microlv/vscode,joaomoreno/vscode,mjbvz/vscode,microsoft/vscode,the-ress/vscode,veeramarni/vscode,joaomoreno/vscode,jchadwick/vscode,microlv/vscode,Zalastax/vscode,joaomoreno/vscode,microlv/vscode,KattMingMing/vscode,landonepps/vscode,hoovercj/vscode,0xmohit/vscode,jchadwick/vscode,the-ress/vscode,mjbvz/vscode,stringham/vscode,DustinCampbell/vscode,Krzysztof-Cieslak/vscode,eamodio/vscode,cleidigh/vscode,DustinCampbell/vscode,Microsoft/vscode,the-ress/vscode,rishii7/vscode,eamodio/vscode,landonepps/vscode,hungys/vscode,veeramarni/vscode,charlespierce/vscode,mjbvz/vscode,rkeithhill/VSCode,hashhar/vscode,eamodio/vscode,microsoft/vscode,zyml/vscode,0xmohit/vscode,cleidigh/vscode,charlespierce/vscode,hungys/vscode,microsoft/vscode,0xmohit/vscode,rishii7/vscode,gagangupt16/vscode,veeramarni/vscode,rishii7/vscode,hoovercj/vscode,the-ress/vscode,stringham/vscode,rishii7/vscode,charlespierce/vscode,the-ress/vscode,0xmohit/vscode,Krzysztof-Cieslak/vscode,Zalastax/vscode,radshit/vscode,hashhar/vscode,hoovercj/vscode,stringham/vscode,jchadwick/vscode,veeramarni/vscode,KattMingMing/vscode,eamodio/vscode,cra0zy/VSCode,microsoft/vscode,Microsoft/vscode,hungys/vscode,Krzysztof-Cieslak/vscode,eamodio/vscode,joaomoreno/vscode,matthewshirley/vscode,eamodio/vscode,DustinCampbell/vscode,rishii7/vscode,mjbvz/vscode,the-ress/vscode,mjbvz/vscode,jchadwick/vscode,radshit/vscode,eamodio/vscode,Microsoft/vscode,mjbvz/vscode,cleidigh/vscode,Microsoft/vscode,microlv/vscode,gagangupt16/vscode,hashhar/vscode,gagangupt16/vscode,hashhar/vscode,microlv/vscode,Zalastax/vscode,hungys/vscode,KattMingMing/vscode,matthewshirley/vscode,hoovercj/vscode,matthewshirley/vscode,stringham/vscode,Microsoft/vscode,microsoft/vscode,cleidigh/vscode,microsoft/vscode,joaomoreno/vscode,landonepps/vscode,rishii7/vscode,Krzysztof-Cieslak/vscode,charlespierce/vscode,rishii7/vscode,radshit/vscode,the-ress/vscode,hashhar/vscode,radshit/vscode,hashhar/vscode,jchadwick/vscode,Microsoft/vscode,eamodio/vscode,hoovercj/vscode,joaomoreno/vscode,matthewshirley/vscode,Microsoft/vscode,hoovercj/vscode,Zalastax/vscode,veeramarni/vscode,radshit/vscode,stringham/vscode,KattMingMing/vscode,the-ress/vscode,Zalastax/vscode,jchadwick/vscode,veeramarni/vscode,microlv/vscode,hoovercj/vscode,hungys/vscode,jchadwick/vscode,zyml/vscode,stringham/vscode,cleidigh/vscode,microlv/vscode,stringham/vscode,0xmohit/vscode,radshit/vscode,charlespierce/vscode,hoovercj/vscode,Krzysztof-Cieslak/vscode,rishii7/vscode,matthewshirley/vscode,Zalastax/vscode,landonepps/vscode,gagangupt16/vscode,hoovercj/vscode,hoovercj/vscode,microsoft/vscode,hungys/vscode,eamodio/vscode,microsoft/vscode,landonepps/vscode,0xmohit/vscode,0xmohit/vscode,hungys/vscode,DustinCampbell/vscode,hungys/vscode,hashhar/vscode,jchadwick/vscode,jchadwick/vscode,veeramarni/vscode,hungys/vscode,zyml/vscode,charlespierce/vscode,microsoft/vscode,radshit/vscode,mjbvz/vscode,matthewshirley/vscode,cleidigh/vscode,charlespierce/vscode,matthewshirley/vscode,hungys/vscode,DustinCampbell/vscode,hashhar/vscode,cleidigh/vscode,gagangupt16/vscode,microsoft/vscode,microsoft/vscode,jchadwick/vscode,rishii7/vscode,Krzysztof-Cieslak/vscode,hungys/vscode,joaomoreno/vscode,0xmohit/vscode,landonepps/vscode,hoovercj/vscode,mjbvz/vscode,mjbvz/vscode,radshit/vscode,joaomoreno/vscode,gagangupt16/vscode,Zalastax/vscode,matthewshirley/vscode,cleidigh/vscode,radshit/vscode,microsoft/vscode,microlv/vscode,zyml/vscode,landonepps/vscode,mjbvz/vscode,mjbvz/vscode,hoovercj/vscode,landonepps/vscode,KattMingMing/vscode,Microsoft/vscode,stringham/vscode,cleidigh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