Add BB Salesforce Configs

[kflemin]

Add Portfolio Salesforce Integration & Use Translation Keys
Adds BB configs only (no portfolio page integration)
Builds on top of #57

New: Portfolio of Properties (BB Salesforce)

• New BbSalesforceService with config CRUD, OAuth login URL, token exchange, logout, and token verification
• New BbSalesforceConfig type and response types
• Added bb_salesforce_enabled to Organization type
• UI: toggle that hides/shows config, URL/Client ID/Client Secret fields, connection status indicator, Login/Logout
  buttons
• Column Mappings tab remains exclusive to Individual Properties

Translation Keys

• All strings now use existing SF_* keys (e.g., SF_CONNECTION_TEXT, SF_DOMAIN_TEXT) instead of hardcoded
  English
• Toggle labels updated: "Individual Properties" vs "Portfolio of Properties"
• Descriptions use new SF_BUILDING_DESC and SF_PORTFOLIO_DESC keys
• 14 new keys added via Lokalise

[kflemin]

@copilot resolve the merge conflicts in this pull request

[Copilot]

@copilot resolve the merge conflicts in this pull request

Merge conflicts have been resolved in commit 7a21b8a. The two conflicting files were:

• salesforce.component.html — kept the translation key approach (e.g., SF_CONNECTION_TEXT, SF_SECURITY_TOKEN_TEXT, SF_DOMAIN_TEXT) from this branch
• salesforce.component.ts — kept the BB Salesforce functionality (toggle, login/logout, submit, token verification methods) from this branch

The build passes successfully after the merge.