fix: Adds the missing translation strings for timed activities and terms of service (M2-8136)

[ramirlm]

📝 Description

🔗 Jira Ticket M2-8136

• Adding localized Greek localized strings for timed activities

📸 Screenshots

🪤 Peer Testing

On Admin App:

• Create an Applet, an activity, save it, and assign it to a user of yours
• Open applet schedule
• Create a new scheduled event
• Create a timer and save it

On the Web App

• Log in
• Make sure to select the Greek language
• Open the activity and follow the flow. Check if the top countwatch and previous string messages are properly translated with the content from the provided file.

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