[FileBrowser] rename file-browser to filebrowser

In preperation to a overhaul of config system.

doc/rofi.1

@@ -1167,7 +1167,7 @@ Message can be multi\-line.
 
 .SS File browser settings
 .PP
-\fB\fC\-file\-browser\-directory\fR \fIdirectory\fP
+\fB\fC\-filebrowser\-directory\fR \fIdirectory\fP
 
 .PP
 Directory the file browser starts in.

doc/rofi.1.markdown

@@ -698,7 +698,7 @@ Message can be multi-line.
 
 ### File browser settings
 
-`-file-browser-directory` *directory*
+`-filebrowser-directory` *directory*
 
 Directory the file browser starts in.
 

source/dialogs/filebrowser.c

@@ -489,8 +489,8 @@ Mode file_browser_mode =
 {
     .display_name       = NULL,
     .abi_version        = ABI_VERSION,
-    .name               = "file-browser",
-    .cfg_name_key       = "display-file_browser",
+    .name               = "filebrowser",
+    .cfg_name_key       = "display-filebrowser",
     ._init              = file_browser_mode_init,
     ._get_num_entries   = file_browser_mode_get_num_entries,
     ._result            = file_browser_mode_result,

source/xrmoptions.c

@@ -132,7 +132,7 @@ static XrmOption xrmOptions[] = {
     { xrm_String,  "drun-url-launcher",         { .str   = &config.drun_url_launcher                    }, NULL,
       "Command to open a Desktop Entry that is a Link.", CONFIG_DEFAULT },
 
-    { xrm_String,  "file-browser-directory",    { .str   = &config.file_browser_directory               }, NULL,
+    { xrm_String,  "filebrowser-directory",    { .str   = &config.file_browser_directory               }, NULL,
       "Directory the file browser starts in", CONFIG_DEFAULT },
 
     { xrm_Boolean, "disable-history",           { .num   = &config.disable_history                      }, NULL,