Add information about filesystem access

[flathubbot]

Started test build 62637

[flathubbot]

Build 62637 successful To test this build, install it from the testing repository:

flatpak install --user https://dl.flathub.org/build-repo/45271/cc.arduino.IDE2.flatpakref

[flathubbot]

Started test build 62639

[flathubbot]

Build 62639 successful To test this build, install it from the testing repository:

flatpak install --user https://dl.flathub.org/build-repo/45273/cc.arduino.IDE2.flatpakref

[SuperNinja-4965]

is ~/var/app/cc.arduino.IDE2 the correct folder to put the dot folders in? Otherwise it looks good to me and ill merge it soon.

[flathubbot]

Started test build 62700

[IverCoder]

is ~/var/app/cc.arduino.IDE2 the correct folder to put the dot folders in? Otherwise it looks good to me and ill merge it soon.

Sorry, I was very sleepy doing this last night I forgot the dot in front of .var 😅 fixed it now

[flathubbot]

Build 62700 successful To test this build, install it from the testing repository:

flatpak install --user https://dl.flathub.org/build-repo/45332/cc.arduino.IDE2.flatpakref

[SuperNinja-4965]

Closed to be merged with #61.