TSL Transpiler: Fix operator precedence of GLSLDecoder

[sunag]

Fixes #31513

Description

Fix operator precedence level of / and * :

Input expression to TSL transpiler:

float r = a / b * ( c / d );

const r = a.div( b ).mul( c.div( d ) );
// old: = a.div( b.mul( c.div( d ) ) );

let r: f32 = ( a / b ) * ( c / d );
// old:    = a / ( b * ( c / d ) );

[novogrammer]

If I’m not mistaken, * and / should have equal precedence and be left-associative (evaluated left to right).

See also: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Operator_precedence