[FEATURE] Harmonisation of wording signals and alarms

[tinneuro]

Is your feature request related to a problem? Please describe.

In our app we are using signal and alarms interchangeably. As at a later point we might want to add Risk assessment and for this the words signals,alarms and alerts have different meanings. Thus we want to harmonise and currently only use signal(s) as word throughout the app. This means changing legends of plots, text in help tab/report (if necessary), table headers etc

Describe the Solution You'd Like

Change wording "alarm(s)" to "signal(s)" everywhere in the app

Describe Alternatives

A clear and concise description of any alternative solutions or features you've considered.

Additional Context

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[jaemol]

This is highly requested from epidemiologist at our end.