Update LocalNetworkAccesss OMA URIs

[mkaply]

Now that I've done the actual templates, need to change the LNA OMA URIs

The current LocalNetworkAccess docs page has:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/LocalNetworkAccess_Enabled

It should be:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~LocalNetworkAccess/LocalNetworkAccess_Enabled

All five OMA-URIs on that page have the same problem. Updated paths for the issue:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~LocalNetworkAccess/LocalNetworkAccess_Enabled
./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~LocalNetworkAccess/LocalNetworkAccess_BlockTrackers
./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~LocalNetworkAccess/LocalNetworkAccess_EnablePrompting
./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~LocalNetworkAccess/LocalNetworkAccess_SkipDomains
./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~LocalNetworkAccess/LocalNetworkAccess_Locked