[FL-870] Auto-generated firmware documentation take two (#2944)

* Add doxygen and doxygen-awesome css, cleanup docs files
* Ignore more libraries and remove leftover local variables
* Create an actual intro page
* .md files linting
* Add doxygen action
* Fix Doxygen path
* Fix doxyfile path
* Try to upload
* Change docs branch
* Add submudules checkout
* Disable doxygen on PR
* Mention the firmware docs in the readme
* More dev docs mentions in the readme
* Fix runner group, add tags
* Test dev in PR
* Disable running on PR
* Fix a typo in the doxyfile
* Try upload to S3
* Fix local path
* Fix S3 ACL
* Add delete flag, unifying dev and tags
* Update ignored directories
* More ignored directories
* Even more ignored directories
* Fix submodule
* Change S3 uploader
* Change S3 uploader version
* Fix aws sync flags
* Fix ACL
* Disable ACL
* Improve ignores, add WiFi devboard docs
* TEMP: generate dev docs
* TEMP: generate 0.89.0 docs
* Disabling PR trigger
* Enable submodules and test build
* Enable test build
* Disable test build
* Change docs directory structure
* Fix accidentally committed submodule
* Fix submodules
* Update links to the developer documentation
* Markdown linting
* Update workflow, enable test build
* Fix doxygen dir path
* Update Doxyfile-awesome.cfg
* Change paths
* Fix upload docs path
* Disable pull_request debug trigger
* Disable tags building
* Remove autolinks and namespaces
* Establish basic documentation structure
* Add missing changes
* Improve stylesheet, move some files
* Improve examples
* Improve the main page
* Improve application dev docs
* Improve system programming docs
* Improve development tools docs
* Improve other docs
* Improve application examples
* Fix formatting
* Fix PVS-studio warnings
* Improve visuals
* Fix doxygen syntax warnings
* Fix broken links
* Update doxygen action

Co-authored-by: DrunkBatya <drunkbatya.js@gmail.com>
Co-authored-by: あく <alleteam@gmail.com>
Co-authored-by: Georgii Surkov <georgii.surkov@outlook.com>
Co-authored-by: Georgii Surkov <37121527+gsurkov@users.noreply.github.com>

documentation/file_formats/BadUsbScriptFormat.md

@@ -1,21 +1,23 @@
-# Command syntax
+# BadUSB File Format {#badusb_file_format}
+
+## Command syntax
 
 BadUsb app uses extended Duckyscript syntax. It is compatible with classic USB Rubber Ducky 1.0 scripts but provides some additional commands and features, such as custom USB ID, ALT+Numpad input method, SYSRQ command, and more functional keys.
 
-# Script file format
+## Script file format
 
 BadUsb app can execute only text scripts from `.txt` files, no compilation is required. Both `\n` and `\r\n` line endings are supported. Empty lines are allowed. You can use spaces or tabs for line indentation.
 
-# Command set
+## Command set
 
-## Comment line
+### Comment line
 
 Just a single comment line. The interpreter will ignore all text after the REM command.
 | Command | Parameters   | Notes |
 | ------- | ------------ | ----- |
 | REM     | Comment text |       |
 
-## Delay
+### Delay
 
 Pause script execution by a defined time.
 | Command       | Parameters        | Notes                               |
@@ -24,7 +26,7 @@ Pause script execution by a defined time.
 | DEFAULT_DELAY | Delay value in ms | Add delay before every next command |
 | DEFAULTDELAY  | Delay value in ms | Same as DEFAULT_DELAY               |
 
-## Special keys
+### Special keys
 
 | Command            | Notes            |
 | ------------------ | ---------------- |
@@ -53,7 +55,7 @@ Pause script execution by a defined time.
 | APP                | Same as MENU     |
 | Fx                 | F1-F12 keys      |
 
-## Modifier keys
+### Modifier keys
 
 Can be combined with a special key command or a single character.
 | Command        | Notes      |
@@ -85,7 +87,7 @@ Will wait indefinitely for a button to be pressed
 | WAIT_FOR_BUTTON_PRESS | None         | Will wait for the user to press a button to continue script execution |
 
 
-## String
+### String
 
 | Command  | Parameters  | Notes                                      |
 | -------  | ----------- | -----------------                          |
@@ -100,13 +102,13 @@ Delay between keypresses.
 | STRING_DELAY | Delay value in ms | Applied once to next appearing STRING command |
 | STRINGDELAY  | Delay value in ms | Same as STRING_DELAY                          |
 
-## Repeat
+### Repeat
 
 | Command | Parameters                   | Notes                   |
 | ------- | ---------------------------- | ----------------------- |
 | REPEAT  | Number of additional repeats | Repeat previous command |
 
-## ALT+Numpad input
+### ALT+Numpad input
 
 On Windows and some Linux systems, you can print characters by holding `ALT` key and entering its code on Numpad.
 | Command   | Parameters     | Notes                                                           |
@@ -115,14 +117,14 @@ On Windows and some Linux systems, you can print characters by holding `ALT` key
 | ALTSTRING | Text string    | Print text string using ALT+Numpad method                       |
 | ALTCODE   | Text string    | Same as ALTSTRING, presents in some Duckyscript implementations |
 
-## SysRq
+### SysRq
 
 Send [SysRq command](https://en.wikipedia.org/wiki/Magic_SysRq_key)
 | Command | Parameters       | Notes |
 | ------- | ---------------- | ----- |
 | SYSRQ   | Single character |       |
 
-## USB device ID
+### USB device ID
 
 You can set the custom ID of the Flipper USB HID device. ID command should be in the **first line** of script, it is executed before script run.