Security: check/fix DebugInfoActivity: Uncontrolled data used in path...

Security: check/fix DebugInfoActivity: Uncontrolled data used in path expression (bitfireAT/davx5#267)

* Passing file name to `EXTRA_LOG_FILE` instead of path. Replaces illegal chars

Signed-off-by: Arnau Mora Gras <arnyminerz@proton.me>

* Removed log file extra

Signed-off-by: Arnau Mora Gras <arnyminerz@proton.me>

* Removed log file extra

Signed-off-by: Arnau Mora Gras <arnyminerz@proton.me>

* Added more error logging

Signed-off-by: Arnau Mora Gras <arnyminerz@proton.me>

* Update KDoc, remove strings

* Moved ViewModel initialization to Factory

Signed-off-by: Arnau Mora Gras <arnyminerz@proton.me>

* Changed ViewModel factory

Signed-off-by: Arnau Mora Gras <arnyminerz@proton.me>

* Updated annotations

Signed-off-by: Arnau Mora <arnyminerz@proton.me>

* Handle EXTRA_LOGS correctly

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Signed-off-by: Arnau Mora Gras <arnyminerz@proton.me>
Signed-off-by: Arnau Mora <arnyminerz@proton.me>
Co-authored-by: Ricki Hirner <hirner@bitfire.at>