Summary of Changes

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This pull request enhances the sharing functionality for notes protected by credentials, specifically by improving how attachments and other embedded content are accessed. It introduces flexible authentication mechanisms using cookies or query parameters to ensure secure delivery of content, alongside new configuration options to customize the shared page layout and content visibility.

Highlights

• Share Access for Protected Notes: Introduced cookie-based and query-based authorization for attachments and assets within notes protected by login:password, addressing the issue where browsers do not send Authorization headers for these resources.
• New Share Control Attributes: Added several new labels to provide fine-grained control over shared content: #shareExclude to completely exclude a note from sharing, #shareTemplateNoPrevNext to hide bottom navigation, #shareTemplateNoLeftPanel to hide the left panel, #shareContentAccess to manually configure content access authentication (cookie, query, or basic), and #shareAccessTokenTimeout to set token expiration.
• Content Access Token Management: Implemented a ContentAccessor class to manage tokens for content access, ensuring a single token can be used for multiple accesses and preventing user interference.
• Dynamic URL Rewriting: Modified the content renderer to dynamically append content access tokens to URLs for various assets (CSS, JS, images, PDFs, attachments) when query-based authentication is enabled.

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