Co-authored-by: Diego Sampaio <chinello@gmail.com>

Co-authored-by: Guilherme Gazzo <guilhermegazzo@gmail.com>

Co-authored-by: Diego Sampaio <chinello@gmail.com>

Co-authored-by: Guilherme Gazzo <guilhermegazzo@gmail.com>

Co-authored-by: Guilherme Gazzo <guilhermegazzo@gmail.com>

Co-authored-by: Diego Sampaio <chinello@gmail.com>

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## Proposed changes (including videos or screenshots)
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Add the following new statistics (metrics):
 - Total Broadcast rooms
 - Total rooms with an active Livestream;
 - Total triggered emails;
 - Total subscription roles;
 - Total User Roles;
 - Total uncaught exceptions;
 - `homeTitleChanged`: boolean value to indicate whether the `Layout_Home_Title` setting has been changed;
 - `homeBodyChanged`: boolean value to indicate whether the `Layout_Home_Body` setting has been changed;
 - `customCSSChanged`: boolean value to indicate whether the `theme-custom-css` setting has been changed;
 - `onLogoutCustomScriptChanged`: boolean value to indicate whether the `Custom_Script_On_Logout` setting has been changed;
 - `loggedOutCustomScriptChanged`: boolean value to indicate whether the `Custom_Script_Logged_Out` setting has been changed;
 - `loggedInCustomScriptChanged`: boolean value to indicate whether the `Custom_Script_Logged_In` setting has been changed;
 - `matrixBridgeEnabled`: boolean value to indicate whether the Matrix bridge has been enabled;

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## Issue(s)
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## Steps to test or reproduce
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## Further comments
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Co-authored-by: Diego Sampaio <chinello@gmail.com>