fix(message): fix in-message embedded link validator (WPB-3554)

[mchenani]

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PR Submission Checklist for internal contributors

• The PR Title

  • conforms to the style of semantic commits messages¹ supported in Wire's Github Workflow²
  • contains a reference JIRA issue number like SQPIT-764
  • answers the question: If merged, this PR will: ... ³

• The PR Description

  • is free of optional paragraphs and you have filled the relevant parts to the best of your ability

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What's new in this PR?

Update the logic to check the embedded link in a message:
1- Show a visit link confirmation dialog when the user click on an embedded link
2- if the link starts with schema [anyString]://[anystring] we don't modify the link
ELSE -> add https:// to the link/text

Testing

Unit tests added

Test Coverage (Optional)

• I have added automated test to this contribution

How to Test

Send a message with any combination of links you can imagine:
1- the visit link dialog, always must be appear
2- if the link misses the schema the shown link in the above dialog must start with https
3- if the link starts with schema, the shown link in the dialog must be the same as you posted
4- the app must not crash in any cases

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References

1. https://sparkbox.com/foundry/semantic_commit_messages
2. https://github.com/wireapp/.github#usage
3. E.g. feat(conversation-list): Sort conversations by most emojis in the title #SQPIT-764.

[AndroidBob]

Build 1020 failed.