Everywhere: Prefer {:#x} over 0x{:x} in format strings

The former automatically adapts the prefix to binary and octal
output, and is what we already use in the majority of cases.

Patch generated by:

    rg -l '0x\{' | xargs sed -i '' -e 's/0x{:/{:#/'

I ran it 4 times (until it stopped changing things) since each
invocation only converted one instance per line.

No behavior change.

Userland/Libraries/LibDebug/Dwarf/AddressRanges.cpp

@@ -69,7 +69,7 @@ ErrorOr<void> AddressRangesV5::for_each_range(Function<void(Range)> callback)
         case RangeListEntryType::EndOfList:
             return {};
         default:
-            dbgln("unsupported range list entry type: 0x{:x}", entry_type);
+            dbgln("unsupported range list entry type: {:#x}", entry_type);
             return Error::from_string_literal("Unsupported range list entry type");
         }
     }