Adding upstream version 115.7.0esr.upstream/115.7.0esr

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

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+=========
+Internals
+=========
+
+Here is a quick overview of the most important code parts. They can be found in the telemetry folder.
+
+* TelemetryController: Main telemetry logic, e.g. assembling pings, local storage (when archiving is enabled), preference changes, testing
+* Telemetry.cpp contains most of the public interface, implements the IDL
+* The different data types for telemetry are handled in TelemetryHistogram, TelemetryScalar, TelemetryEvent.
+* TelemetryEnvironment: A helper for gathering environment data, like build version or graphics data
+* TelemetryScheduler: Starts regular jobs for collecting and sending data
+* TelemetrySend: Sending and caching of pings
+* TelemetryStorage: Handles writing pings to disk for TelemetrySend
+* TelemetrySession: Collects data for a browsing session, includes many of the most important probes (aka metrics)
+* Policy: A layer of indirection added to provide testability. A common pattern in many files
+* pings/: Contains definitions and handling for most ping types, like EventPing
+
+More details on different topics can be found in these chapters:
+
+.. toctree::
+   :maxdepth: 2
+   :titlesonly:
+   :glob:
+
+   **