Description

This PR adds more clarity to passphrase field of "Add new repository" and "Add existing repository" sections.

Changes made:

• Added placeholder text in passphrase field for better clarity for the users.
• Added a NOTE section to notify the importance of keeping the entered passphrase safe.
• UI of repo_add.ui has been modified.
• No existing functionality has been changed.

Related Issue

Resolves #2194

Motivation and Context

Several users reported confusion regarding the passphrase field in the "Add new repository" of Vorta and requested an improved UI with clearer information.

How Has This Been Tested?

• Tested the UI by running the build

Screenshots:

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

•  I have read the CONTRIBUTING guide.
•  My code follows the code style of this project.
•  My change requires a change to the documentation.
•  I have updated the documentation accordingly.
•  I have added tests to cover my changes.
•  All new and existing tests passed.

I provide my contribution under the terms of the license of this repository and I affirm the Developer Certificate of Origin.