There is already default handling of title. Remove instances where people are unknowingly overriding it
For instances where we want to set special things, make sure to use CommonSettings.Title, so people can still override
Allows users to filter the Jenkins jobs shown in the widget by providing a regular expression in the config file. The regex should be specified in the config like so:
```
jobNameRegex: ^[a-z]+.$
```
Another example:
```
jobNameRegex^[a-z]+\[[0-9]+\]$
```
If, on startup, a widget's positional configuration is invalid (ie:
cannot be displayed onscreen) then terminate the app and inform about
which widget is erroring
