Add missing python docs for disable_timeline & reset_time (#5269)

### What

* Fixes #5255

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* Using full set of examples from `nightly` build:
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rerun_py/docs/gen_common_index.py

@@ -92,7 +92,19 @@ class Section:
     ),
     Section(
         title="Logging functions",
-        func_list=["log", "set_time_sequence", "set_time_seconds", "set_time_nanos"],
+        func_list=[
+            "log",
+        ],
+    ),
+    Section(
+        title="Timeline functions",
+        func_list=[
+            "set_time_sequence",
+            "set_time_seconds",
+            "set_time_nanos",
+            "disable_timeline",
+            "reset_time",
+        ],
     ),
     ################################################################################
     # These sections don't have tables, but generate pages containing all the archetypes, components, datatypes