style: Reformat config files

Use spaces instead of tabs (as they depend on text editor settings).
Make configuration files more readable and consistent seeing as there
were some mixed indentation and styling.
Also put some logic into styling.

src/daemon/media-session.d/media-session.conf

@@ -10,7 +10,6 @@ properties = {
 
 spa-libs = {
     # Mapping from factory name to library.
-
     api.bluez5.*    = bluez5/libspa-bluez5
     api.alsa.*      = alsa/libspa-alsa
     api.v4l2.*      = v4l2/libspa-v4l2

src/daemon/media-session.d/v4l2-monitor.conf

@@ -1,7 +1,6 @@
 # V4L2 monitor config file #
 
-properties = {
-}
+properties = { }
 
 rules = [
     # An array of matches/actions to evaluate.

src/daemon/pipewire.conf.in

@@ -23,7 +23,7 @@ properties = {
 }
 
 spa-libs = {
-    ## <factory-name regex> = <library-name>
+    #<factory-name regex> = <library-name>
     #
     # Used to find spa factory names. It maps an spa factory name
     # regular expression to a library name that should contain
@@ -42,8 +42,10 @@ spa-libs = {
 }
 
 modules = {
-    ##  <module-name> = { [args = { <key>=<value> ... }]
-    #                     [flags = [ [ifexists] [nofail] ]}
+    #<module-name> = {
+    #    [ args = { <key> = <value> ... } ]
+    #    [ flags = [ [ ifexists ] [ nofail ] ]
+    #}
     #
     # Loads a module with the given parameters.
     # If ifexists is given, the module is ignored when it is not found.
@@ -129,8 +131,10 @@ modules = {
 }
 
 objects = {
-    ## <factory-name> = { [args = { <key>=<value> ... } ]
-    #                     [flags = [ [nofail] ] }
+    #<factory-name> = {
+    #    [ args  = { <key> = <value> ... } ]
+    #    [ flags = [ [ nofail ] ]
+    #}
     #
     # Creates an object from a PipeWire factory with the given parameters.
     # If nofail is given, errors are ignored (and no object is created).
@@ -165,7 +169,7 @@ objects = {
 }
 
 exec = {
-    ## <program-name> = { [args = "<arguments>"] }
+    #<program-name> = { [ args = "<arguments>" ] }
     #
     # Execute the given program with arguments.
     #