fix: render a single tab without a tab bar

142 tab bars held one tab, most of them "On the device" under a heading saying so. One item now stands alone, led by its label unless it names the place the text around already gives. The network route drops "Run the command on the computer" under the heading "From your computer", which keeps RetroPie in its word budget.

scripts/generate_site.py

@@ -4202,7 +4202,7 @@ def _setup_routes(name: str, display: str, page_link: bool = False) -> list[str]
             # lines are on the get/ page, the one the command is shared from.
             tabs = ("windows",) if page_link else ("windows", "macos", "linux")
             computer += [
-                "Needs the device on your network. Run the command on the computer.",
+                "Needs the device on your network.",
                 "",
                 *terminal_tabs(tabs, args, how=how),
                 *([f"[Mac or Linux](../{get_page_link(name)}#from-your-computer)", ""]