Automatic legend placement by `axislegend()`

### Feature description When `axislegend()` is called, the function should automatically find which part of the axis is empty and place the legend there. From Discourse thread: https://discourse.julialang.org/t/how-to-automatically-choose-legend-location-in-makie/136105 ### For plot types, please add an image of how it should look like Minimal working example: ```julia using CairoMakie x = [ 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, 3.0, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 4.0, 4.1, 4.2, 4.3, 4.4, 4.5, 4.6, 4.7, 4.8, 4.9, 5.0, 5.1, 5.2, 5.3, 5.4, 5.5, 5.6, 5.7, 5.8, 5.9, 6.0, 6.1, 6.2, 6.3, 6.4, 6.5, 6.6, 6.7, 6.8, 6.9, 7.0, 7.1, 7.2, 7.3, 7.4, 7.5, 7.6, 7.7, 7.8, 7.9, 8.0, 8.1, 8.2, 8.3, 8.4, 8.5, 8.6, 8.7, 8.8, 8.9, 9.0, 9.1, ] y = [ NaN, 0.0429089737491369, 0.10264903115083439, 0.0947777814294252, 0.0338277977476063, 0.03174121198969, 0.03635105144486207, 0.03978537080576214, 0.04046699021588537, 0.0412114876081603, 0.04319992729537861, 0.047075466839262954, 0.05131356002183631, 0.054075421907765195, 0.05494064442696345, 0.05522113901611183, 0.0545425783674207, 0.053337326355401504, 0.053955238010355705, 0.05361125520368727, 0.053835496133942236, 0.05355467706356569, 0.05420182434727196, 0.054824149894319114, 0.05561180236049295, 0.05604520368951108, 0.05696506714638169, 0.05777955130155306, 0.058152676029887364, 0.05830765126032878, 0.05807693543178287, 0.057956142242877214, 0.058417102692983953, 0.05941577009935072, 0.06213862703222151, 0.06394819091335811, 0.06430757550020112, 0.06396330812044938, 0.06364797247277251, 0.06444432433951856, 0.06612602361444533, 0.06674719965040146, 0.06663497415958049, 0.06651114762672354, 0.0677709835257091, 0.06910617890411844, 0.06916322518500292, 0.06858061917815957, 0.06887476660829213, 0.07034755694303292, 0.07160496055559556, 0.0719943878296249, 0.07251013980137015, 0.07316880248230188, 0.07535219914259361, 0.07895575424150675, 0.08190481515216726, 0.0841501909525944, 0.087111284064865, 0.09262652606093782, 0.10198570164602906, 0.11407621031241988, 0.12787899039271325, 0.1395963748046922, 0.15027238139221732, 0.16861242635799975, 0.19141131550878965, 0.22991581881877568, 0.26987775088184257, 0.3989823619456098, 0.5173832829870192, 0.7014131365240662, 0.730236402997345, 0.7637231954332452, 0.9406621308584271, 1.0269919264161609, 1.205219232605864, 2.132652139555734, 2.231610024175371, NaN, NaN, NaN, NaN, NaN, NaN, NaN, NaN, NaN, ] fig, ax, _ = lines(x, y, label = "data") axislegend(framevisible = false) # problem better shown with framevisible = false ``` Currently, `axislegend()` places the legend like so: <img width="1200" height="900" alt="Image" src="https://github.com/user-attachments/assets/55ce0ddb-bfa4-457e-866f-8427a1357221" /> The feature request is that automatically moves without having to use `position = :lt` or something to that effect in the `axislegend()` call <img width="1200" height="900" alt="Image" src="https://github.com/user-attachments/assets/2479b68b-c6ea-4d68-bbd3-0eb85b100e9e" />