docs: Update doxygen to have a more modern look

docs: Update doxygen to have a more modern look

.gitignore

@@ -26,3 +26,4 @@ tmp.*
 *.pkl
 .cache
 compile_commands.json
+docs/html/*

Projects/WorkDir/Doxyfile.in

@@ -25,3 +25,4 @@ DOT_IMAGE_FORMAT       = svg
 DOT_GRAPH_MAX_NODES    = 10
 MAX_DOT_GRAPH_DEPTH    = 5
 DOT_MULTI_TARGETS      = YES
+HTML_EXTRA_STYLESHEET  = @CMAKE_SOURCE_DIR@/../../docs/doxygen-awesome.css 

docs/doxyfile

@@ -1111,7 +1111,7 @@ HTML_STYLESHEET        =
 # list). For an example see the documentation.
 # This tag requires that the tag GENERATE_HTML is set to YES.
 
-HTML_EXTRA_STYLESHEET  = 
+HTML_EXTRA_STYLESHEET  = docs/doxygen-awesome.css 
 
 # The HTML_EXTRA_FILES tag can be used to specify one or more extra images or
 # other source files which should be copied to the HTML output directory. Note
@@ -2364,7 +2364,7 @@ MAX_DOT_GRAPH_DEPTH    = 5
 # The default value is: NO.
 # This tag requires that the tag HAVE_DOT is set to YES.
 
-DOT_TRANSPARENT        = NO
+DOT_TRANSPARENT        = YES
 
 # Set the DOT_MULTI_TARGETS tag to YES to allow dot to generate multiple output
 # files in one run (i.e. multiple -o and -T options on the command line). This