équilibrages, fix et évolutions

* résolution du bug de disparition des items #94
* améliorations définitives dans le camion via compost #88
* ajout de plus d'aléatoire dans le zone de départ
* suppression des récompenses de quota (pour l'instant)
* équilibrage du gain en graine
* ajout de la clarté dans les actions

common/icons/bucket.svg

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+<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="#ffffff" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="icon icon-tabler icons-tabler-outline icon-tabler-bucket"><path stroke="none" d="M0 0h24v24H0z" fill="none"/><path d="M12 7m-8 0a8 4 0 1 0 16 0a8 4 0 1 0 -16 0" /><path d="M4 7c0 .664 .088 1.324 .263 1.965l2.737 10.035c.5 1.5 2.239 2 5 2s4.5 -.5 5 -2c.333 -1 1.246 -4.345 2.737 -10.035a7.45 7.45 0 0 0 .263 -1.965" /></svg>

common/icons/bucket.svg.import

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+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://bd6qddv5ihkjr"
+path="res://.godot/imported/bucket.svg-b324d7bdd4f8d0338862c0a1b53a000b.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://common/icons/bucket.svg"
+dest_files=["res://.godot/imported/bucket.svg-b324d7bdd4f8d0338862c0a1b53a000b.ctex"]
+
+[params]
+
+compress/mode=0
+compress/high_quality=false
+compress/lossy_quality=0.7
+compress/uastc_level=0
+compress/rdo_quality_loss=0.0
+compress/hdr_compression=1
+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/channel_remap/red=0
+process/channel_remap/green=1
+process/channel_remap/blue=2
+process/channel_remap/alpha=3
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1
+svg/scale=2.0
+editor/scale_with_editor_scale=false
+editor/convert_colors_with_editor_theme=false