alerts: inconsistent capitalization

[dperpeet]

Most conditions and phrases for setroubleshoot fix solutions start with a capital letter, but some don't.
Example:

If you believe that SetroubleshootF should be allowed write access on the selinux directory by default.
You should report this as a bug. You can generate a local policy module to allow this access.

In the Cockpit UI it looks strange to have the text visible if some lines start with a lower case letter:

If you believe SetroubleshootF tried to disable SELinux.
you may be under attack by a hacker, since confined applications should never need this access.

I believe this should be consistent and proposed a fix in #11 where I hopefully got all plugin cases.

[dperpeet]

screenshot of the work in progress branch where you can see the inconsistency: